Download C-dash User Guide - Formula Ford Zetec

C-dash
USER GUIDE
C-dash User Guide
Part Number: 29B-071210-4E
March 2001
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© Pi Research 2001
1
Disclaimer
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required to classify any hazardous materials in the products it supplies and to provide
relevant safety information to users.
Any hazardous materials in Pi products are clearly marked with appropriate symbols.
Product Safety Data Sheets relating to these materials are available on request.
2
C-dash User Guide
Conventions ........................................................................................... 14
Display field use ........................................................................... 14
Remote button functions .............................................................. 15
C-dash modes ........................................................................................ 16
Power up mode ............................................................................ 17
Realtime mode ............................................................................. 18
Race mode ................................................................................... 20
Telltale mode ................................................................................ 21
Setup mode .................................................................................. 24
Installation Notes
The installation kit ......................................................................... 27
Part A : Fitting the dash and sensors .................................................. 28
Wiring notes .................................................................................. 28
Wiring colour codes ...................................................................... 28
Power supply ................................................................................ 29
Mounting the C-dash .................................................................... 29
Wheelspeed measurement .......................................................... 32
RPM measurement ....................................................................... 35
Pressure measurement ................................................................ 42
Temperature measurement .......................................................... 44
Lap timing ..................................................................................... 46
Optional sensors and interface boxes .......................................... 50
ABS sensor interface box ............................................................. 51
Waterspeed sensor ...................................................................... 53
Wheelspeed selector box ............................................................. 55
Turbo/carburettor pressure sensor ............................................... 57
3
Setup
The C-dash ................................................................................... 12
The Beacon kit .............................................................................. 13
Appendices Troubleshooting At the Track Using C-dash
Overview
Index
Introduction .............................................................................................. 7
Installation
Overview
Contents
Thermocouple sensor ................................................................... 58
Setting up the gear number option ............................................... 60
Remote push buttons ................................................................... 61
Fitting the buttons to a steering wheel ........................................ 63
Part B : Fitting the wiring loom ............................................................ 65
Connect the loom to the C-dash .................................................. 65
Lay the loom in the car ................................................................. 65
Secure unwanted sensor wires .................................................... 66
Cut the Loom to size .................................................................... 66
Fit Sure-Seal connectors to the loom ........................................... 67
Waterproof the Sure-Seal connectors .......................................... 69
Repeat the process for each sensor ............................................ 70
Fit the spade connectors .............................................................. 70
Fit the 4mm ring tags .................................................................... 71
Fit the spiralwrap .......................................................................... 71
Reinstall the loom ......................................................................... 71
Part C: System checks and Power-up ................................................. 72
Check the installation ................................................................... 72
Turn the C-dash on ....................................................................... 72
Set up the C-dash ......................................................................... 73
Part E: Wiring details ............................................................................. 74
C-dash wiring Information ............................................................ 74
Setup
Setup mode ............................................................................................. 79
Entering Setup mode .................................................................... 81
Units .............................................................................................. 84
Alarms ........................................................................................... 87
Beacon .......................................................................................... 91
RPM .............................................................................................. 93
Wheelspeed .................................................................................. 97
Options ....................................................................................... 100
Defaults ....................................................................................... 104
4
C-dash User Guide
Initial checks ........................................................................................ 115
Kit list .......................................................................................... 115
Checklists ................................................................................... 116
A typical day… ..................................................................................... 117
Preparing for an outing ............................................................... 118
Driving the car ............................................................................ 119
Returning to the pits ................................................................... 121
Switching off the car ................................................................... 122
Troubleshooting
C-dash ........................................................................................ 125
Remote push buttons ................................................................. 126
Engine speed (RPM) .................................................................. 126
Speed .......................................................................................... 128
Lap times (Beacon) .................................................................... 131
Temperatures ............................................................................. 133
Pressures .................................................................................... 133
Telltales ...................................................................................... 134
Appendices
Appendix A - C-dash and System 1 ................................................... 137
Introduction ................................................................................. 137
Installation of C-dash with System 1 .......................................... 138
Installation information ............................................................... 139
C-dash setup for use with System 1 .......................................... 140
Pi Club Expert Windows ............................................................. 140
Connector information ................................................................ 141
5
Installation
At the Track
Setup
Telltale mode ........................................................................................ 111
Telltales pages ........................................................................... 111
Appendices Troubleshooting At the Track Using C-dash
Race mode ............................................................................................ 109
Alarms ......................................................................................... 110
Index
Realtime mode ..................................................................................... 107
Overview
Using the C-dash
Appendix B - C-dash and System 3 Club .......................................... 144
Introduction ................................................................................. 144
Installation with System 3 Club .................................................. 145
System 3 Club LCU DIP switch settings .................................... 146
Using the C-dash with System 3 Club ....................................... 146
Changing pages ......................................................................... 148
C-dash setup for use with System 3 Club .................................. 149
Pi Version 6 Lite Setup software ................................................ 149
Appendix C - C-dash and MBE ECU .................................................. 151
Introduction ................................................................................. 151
External sensors required .......................................................... 151
C-dash setup for use with MBE ECU ......................................... 151
Using a MBE ECU and C-dash with Pi System 1 ...................... 152
Appendix D - C-dash and Pectel ECU ............................................... 153
Introduction ................................................................................. 153
External sensors required .......................................................... 153
C-dash setup for use with Pectel ECU ....................................... 153
Using a Pectel ECU and C-dash with Pi System 1 .................... 154
Index
Index ...................................................................................................... 157
Contact information ............................................................................. 162
6
C-dash User Guide
Introduction
Welcome to the Pi C-dash User Guide. This User Guide is the core documentation for the
installation and use of Pi C-dash.
This User Guide has been divided into the following sections to help you become familiar
with the C-dash quickly and easily:
Overview
Installation Notes
Setup
Using C-dash
At the track
Troubleshooting
Appendices
Index
If a C-dash has already been fitted to your car, you can get a general idea of the features
available within each operating mode (Race mode, Telltale mode, etc.) by looking at the
Overview section. A summary of how a C-dash is likely to be used in practice is given in
the section At the track.
If you are installing a C-dash yourself, you will need to follow the instructions given in the
Installation Notes section before proceeding.
7
8
C-dash User Guide
Overview
Overview
Read this section before you use the C-dash as an engineer or driver. You will also find it
useful to refer to it at the beginning of each race, until you are thoroughly familiar with the
C-dash.
The C-dash is a digital dash which can be used to display directly the data from a number
of sensors. It can also be used to display data from a Pi System 1 or a Pi System 3 Club.
The following options are available:
■
■
■
■
■
■
■
■
Wheel speed sensor
RPM box
Temperature sensors
Pressure sensors
Installation kit
External warning light
Beacon kit
Adapter looms to allow a C-dash to be used with a Pi System 1.
11
Overview
This section gives an overview of the C-dash, its features and modes.
The C-dash
The C-dash has a number of fields which can display the following parameters:
■
■
■
■
■
■
■
Speed
RPM
Lap times (Beacon kit required)
Oil temperature
Coolant temperature
Oil pressure
Fuel pressure.
The dash also has four coloured LEDs on the front panel as gear-change lights that come
on in sequence to indicate when a gear change should be made, an RPM redline alarm
light, a 7-segment LED that displays the page identification letter (or gear number if set
up), and four alarm lights that light if the temperature and pressure values exceed preset
alarm thresholds.
12
C-dash User Guide
Overview
The Beacon kit
The Beacon kit provides the following benefits:
■
■
■
Fixed lap times or elapsed stage times
Lap counter
Lap time telltales.
The Beacon kit allows an accurate registration of each lap passed. The kit consists of an
infrared detector mounted on the vehicle and an infrared transmitter mounted on the pit
wall.
As the vehicle passes the transmitter, the infrared signal is picked up by the detector on
the vehicle. The dash immediately displays the lap time for the driver.
As well as displaying the time and count for each lap, the Beacon kit enables the C-dash
to store and display the maximum/minimum readings for each of the sensors per lap (the
telltales).
13
Conventions
Gear change lights
(four orange LEDs)
RPM redline
alarm (red LED)
field 2
(two 7-segment LEDs)
field 3
(three 7-segment LEDs)
field 4
(four 7-segment LEDs)
Oil temperature alarm
(yellow LED)
Fuel pressure alarm
(yellow LED)
Coolant temperature
alarm (red LED)
Oil pressure alarm
(red LED)
page ident
(one 7-segment LED)
field 5
(five 7-segment LEDs)
C-dash display fields
Display field use
The following table details what data is shown in the fields on the display Pages.
Field 2
Field 3
Field 4
Field 5
Ident
Realtime A
Realtime B
Race
Telltales C
Telltales D
Telltales E
Wheelspeed
Coolant temp
Oil press
RPM
Letter A
Wheelspeed
Oil temp
Fuel press
Battery volts
Letter B
Lap number
Latched min. speed
Realtime speed*
Lap time
Letter r**
Lap number
Min speed
Max speed
Lap time
Letter C
Lap number
Max cool temp
Min oil press
Max RPM
Letter D
Lap number
Max oil temp
Min fuel press
Min battery V
Letter E
* Realtime speed can be Latched maximum speed . **Letter r can be replaced by gear number.
14
C-dash User Guide
BUTTON PRESS
Overview
Remote button
functions
TIME (seconds)
0
Click
Press and Hold
0.5
EXAMPLE
1
1.5
2
Click (CHANNEL) to cycle through
Pages in Real-time mode
Press and Hold both (CHANNEL)
and (MODE/LAP) to enter Setup
mode
15
C-dash modes
The C-dash automatically switches into one of four different operating modes depending
on whether the vehicle is stationary, is being driven, or has just returned from an outing.
These operating modes are:
■
■
■
■
Power up mode
Realtime mode
Race mode
Telltale mode.
In addition to the four normal operating modes, a Setup mode exists for you to adjust
alarm thresholds (e.g. for low oil pressure or high oil temperature), the RPM red line
setting and other parameters.
The word Page is used to describe a single screen display on the C-dash. Each Page is
identified by a letter displayed in the page ident field.
16
C-dash User Guide
Overview
Power up mode
When power is first switched on, the C-dash performs a selftest. After the selftest has
finished, information on the version of the software installed is displayed for about three
seconds.
You should make a note of the version number displayed on your C-dash and have it
ready if you ever need technical support.
17
Realtime mode
After power has been applied, the C-dash goes into Realtime Page A and remains there
until the vehicle is driven. As the name suggests, Realtime mode is used to show the
readings of the sensors on the vehicle in real time (i.e. continuously), as they happen.
The two Pages in Realtime mode display the information shown below.
Realtime Page A
Parameter
Field
Wheelspeed
Coolant Temperature
Oil Pressure
RPM
Letter A
2
3
4
5
Page ident
Wheelspeed
Oil
Pressure
Coolant
Temperature
letter A
RPM
18
C-dash User Guide
Parameter
Field
Wheelspeed
Oil Temperature
Fuel Pressure (or gear number if set)
Battery volts
Letter b
2
3
4
5
Page ident
Overview
Realtime Page B
Wheelspeed
Fuel Pressure
(or Gear number
if set)
Oil
Temperature
letter b
Battery
volts
19
Race mode
The C-dash enters Race mode when the vehicle exceeds its minimum Out speed, for
example 40mph, and it automatically switches to Race page (Page r). Latched maximum
speed can be displayed instead of Realtime speed by selecting the Latched option in
Setup. If gear number options have been set, the letter r in the page ident field is replaced
by the gear number.
Race Page
Parameter
Field
Lap number
Latched minimum speed
Realtime speed or Latched maximum speed
Laptime
Letter r (or gear number)
2
3
4
5
Page ident
lap number
realtime speed
or
latched
maximum speed
latched
minimum
speed
letter r
lap time
20
C-dash User Guide
When you return to the pits after driving the vehicle around the track and you have
stopped and turned the engine off, the C-dash switches to Telltale mode to show you
important information about the outing you’ve just completed.
NOTE: If you remove power from the C-dash, ALL Telltale data will be lost.
In Telltale mode, three Telltale Pages display the following information.
Telltale Page C
Parameter
Field
Lap number
Minimum speed
Maximum speed
Lap time
Letter C
2
3
4
5
page ident
lap number
minimum
speed
maximum
speed
letter C
lap time
21
Overview
Telltale mode
Telltale Page D
Parameter
Field
Lap number
Maximum coolant temperature
Minimum oil pressure
Maximum RPM
Letter d
2
3
4
5
page ident
lap number
maximum
coolant
temperature
minimum
oil pressure
letter d
maximum
RPM
22
C-dash User Guide
Parameter
Field
Lap number
Maximum oil temperature
Minimum fuel pressure
Minimum battery volts
Letter E
2
3
4
5
page ident
Overview
Telltale Page E
lap number
maximum
oil temperature
minimum
fuel pressure
letter E
minimum
battery volts
23
Setup mode
The C-dash is preprogrammed with default settings, but it may be necessary to alter these
values to suit your vehicle.
Some of these parameters only need to be set once when the C-dash is installed.
However, you may wish to adjust parameters such as the RPM over-rev light or the battery
voltage alarm level more frequently.
Details of how to setup the C-dash are given in the ‘Setup’ section of this guide, together
with a list of the parameters you change.
Setup page
24
C-dash User Guide
Installation
Installation
Notes
The Installation Notes section covers the installation procedure for the C-dash.
The C-dash comes complete with an installation kit which includes all the connectors,
tools and components you will need:
Quantity
Description
3
2
1
11
17
4
3
4
6m
6m
2
2
1
1
1
3-way Sure-Seal socket connectors (Wheelspeed, RPM, Beacon)
2-way Sure-Seal socket connectors (for temperatures)
3-way Sure-Seal plug connector (for tacho RPM inputs)
Sure-Seal socket crimps
Sure-Seal pin crimps
8mm crimp terminals (for power connections)
Female spade connectors (for 0—40 psi pressure sensors)
4mm ring tag connectors (for 0—200 psi pressure sensor)
3mm spiralwrap
6mm spiralwrap
M3 brass nuts
Shakeproof washers
Sure-Seal insertion tool
Sure-Seal crimp tool
Tube silicone sealant
27
Installation
The installation kit
Part A : Fitting the dash and sensors
Wiring notes
The wire used in the C-dash is abrasion resistant and rated to 150°C.
The spiralwrap is rated –10°C to +120°C and is used to further protect the wiring and keep
it in a neat bundle. When a bundle passes through a sheet metal bulkhead, make sure
that there is no risk of the edge cutting into the bundle.
Cables should not be run next to sources of interference, i.e. ignition coils, plug leads,
alternators, fuel pumps, radios and ECUs. If it is absolutely necessary to run the cables
near any of these, avoid parallel runs if at all possible.
Care should be taken in the routing of the cables around the engine or brake areas, as
localised heating when the vehicle is stationary can cause damage to the wiring.
All vehicles should be wired for the Beacon kit.
If your vehicle does not have fuel injection, you should coil up the wiring for the fuel
pressure sensor behind the dash. The wiring may be used for gear position. If it is not
used at all, insulate the ends of the wires, or fit a connector socket.
Wiring colour codes
The wires in the loom are colour coded: black for ground, red for power and a different
colour for signal. However, this does not mean that all black or red wires are the same.
To avoid any problems, the C-dash unit should be treated as a separate system and only
connected to the vehicle at the battery and Master switch. It should not share its wiring
with other systems or items on the vehicle.
28
C-dash User Guide
Power supply
The C-dash should be connected directly to the ‘safe’ side of the Master switch, to ensure
the safety of the installation. The positive supply to the display should be fed directly from
the battery ‘live’ terminal, or optionally through a separate switch, which allows the display
to remain powered up while the ignition systems are off.
You can also power the C-dash from a separate 12 volt battery when using it, for instance,
on a kart.
Mounting the C-dash
Use the following diagrams when mounting the C-dash.
C-dash dimensions
28.0
1.10"
14.5
0.57"
68.0
2.68"
110.0
4.33"
C-dash dimensions in millimetres and inches
You can either adapt your vehicle’s existing dash panel, or make up a new one specifically
for the C-dash.
29
Installation
On racing cars, the negative side of the supply battery is conventionally connected to the
vehicle chassis through a Master switch. This allows total disconnection of all electrical
power in an emergency, and is required by the regulations governing all motor sports.
1
2
Remove any existing displays from the vehicle.
Check the clearance available behind the dash, to make sure there is room
for the C-dash loom and connectors.
20.0
0.79”
36.2
1.43”
11.8
0.46”
3 off
Ø M4
35.0
1.38”
35.0
1.38”
C-dash mounting holes (dimensions in millimetres and inches)
3
4
5
30
C-dash User Guide
Mark up the dash panel with the location of the three mounting holes as
shown in the above figure.
Drill the location holes.
Mount the dash on the panel using the three anti-vibration mounts and screws
provided.
Installation
Notes
■ The C-dash must be electrically and mechanically isolated from the
chassis. Use the anti-vibration mounts supplied.
■ Make sure that there is space behind the dash panel for the cables to exit.
■ Do not bend the looms so that they place a strain on the connectors.
■ Fit the remote buttons so that the driver can easily reach them, but they so
that they cannot accidentally be knocked.
■ The C-dash should be mounted so that the driver can see the display
through the steering wheel.
■ The driver should look straight at the display. A filter on the C-dash screen
restricts the view of the display to ±15° from the horizontal.
0° to 15°
0° to 15°
Dash viewing angles
31
Wheelspeed
measurement
Wheelspeed sensor
M8 x 1 thread
30.0
1.18"max
1800.00
70.86"
Wheelspeed Sensor
Sensing Distance
Clearance Distance
Mounting
Connector
Sensor connections
0.4mm to 0.8mm
8mm from any steel object
30mm of M8 x 1 thread
(DO NOT OVER-TIGHTEN)
3-pin Cannon Sure-Seal
Pin 1 (Blue)
Ground
Pin 2 (Black)
Signal
Pin 3 (Brown)
Power
Failure to have the minimum clearance from other steel objects causes the sensor to
register a rotation even though the trigger target has moved out of range. On the other
hand, if the working distance is too great, the sensor will miss triggers, especially at slow
speeds.
WARNING: The sensor should only be tightened with a small spanner. Overtightening the sensor will cause it to fracture.
32
C-dash User Guide
Wheelspeed Trigger
ferrous metal object
1 to 30 per wheel revolution (typically 2 or 4)
nominally 8 x 8 x 4mm
The trigger used to activate the wheelspeed sensor should have a surface approximately
the same size as the head of the sensor, and be at least 4mm away from other metal
objects.
On saloon cars, tolerances of 0.5mm can be hard to achieve so we suggest you use only
one trigger.
The sensor can either be mounted in a threaded block, or with a sheet metal bracket.
Make sure the sensor does not vibrate or touch the trigger when the vehicle is driven.
The C-dash can be used with a wide variety of vehicles, so the details of mounting the
sensor will vary (installation data sheets for each type are available from Pi Research).
Three examples of mounting configurations are shown in the following diagrams.
Wheelspeed
sensor
Gap 0.4 to 0.8mm
0.015" to 0.31"
Steel trigger
plate
Top mounted configuration
Wheelspeed
sensor
Gap 0.4 to 0.8mm
0.015" to 0.31"
Side mounted configuration
33
Installation
Type
Number
Size
2.0 mm / 0.078"
minimum clearance
Gap 0.4 to 0.8mm
0.015" to 0.31"
2.0 mm / 0.078"spacer
Wheel stud mounted configuration
Wheelspeed sensors
1
Make a bracket for the wheelspeed sensor and mount the sensor on the
vehicle.
The sensor is normally mounted on the front nearside wheel, since this experiences the
least wheel lift or lockup.
Do not over-tighten the wheelspeed sensor, and avoid mounting the sensor too close to
the brake disc (to avoid superheating).
2
3
Secure the cable of the sensor on the wishbone and into the front nose cone
(on a formula car), or through to the engine bay (on a saloon car).
Cover the wheelspeed sensor cable with spiralwrap.
Make sure the cable is not tight when the wheel moves or the wishbone is lowered.
4
Mount the wheelspeed trigger on the wheel.
See earlier description of trigger types. Make sure that the sensor head does not touch
any of the triggers.
5
34
C-dash User Guide
Set up the sensor with an approximate gap of 0.7mm (0.28”).
RPM measurement
The C-dash can measure the engine RPM in three ways:
■
digital ‘tacho’ signals (vehicles with electronic ignition)
the RPM box with Low Tension (LT) input (e.g. standard contact breaker
ignition systems)
the RPM box with High Tension (HT) input (e.g. electronic ignition systems
where no tacho signal is available).
Installation
■
■
The RPM Box generates its own tacho signal from the LT or HT signals on the vehicle.
Tachometer Signals
The C-dash unit can accept a ‘tacho’ feed from most electronic ignition modules.
Connector
Connections
3-pin Cannon Sure-Seal
Pin 2 (Violet) Signal
A spare connector has been included in the installation kit. Only pin 2 needs to be
connected; the ignition system and the C-dash must share the same earth.
If you have a low voltage digital tacho signal on your vehicle (from the ignition system),
locate the wire and connect it to pin 2 of the 3-way Sure-Seal plug connector supplied.
pin 2
Loom
Ignition System
3-way SureSeal socket
Tachometer connections
When the loom is installed, the tacho signal will be connected to the signal input on the
RPM connector.
35
The RPM Box
Switch
selection
aperture
4
LTb
0
8
HT
C
35.0
3.77"
350.0
13.77"
LTa
3-way SureSeal plug
40.0
1.57"
20.0
0.78"
RPM Box
Mounting
Connector
Connections
Industrial Velcro®
3-pin Cannon Sure-Seal
Pin 1 (Green)
Pin 2 (Blue)
Pin 3 (Red)
Ground
Signal
Power
The RPM box either picks up current pulses from the LT side of the coil, or voltage pulses
from the master HT lead.
WARNING: To prevent damage, neither of these sources should be directly
connected to the C-dash.
The RPM Box should be fixed using Industrial Velcro®, near the ignition coil but not
mounted to it. A suitable mounting position can usually be found which allows the LT
connection to be made without extending the wiring provided.
36
C-dash User Guide
RPM Box LT connection
The LT (Low Tension voltage) connection on the RPM Box has two flying leads.
2
Remove the connection from the coil to the ignition unit and connect one of
the flying leads on RPM Box to the free end of this wire.
Connect the other lead from the RPM Box to the coil.
Installation
1
C-dash
RPM
box
LTa
Ignition
Control
Unit
LTb
Ignition
coil
Original
wiring
The RPM Box connected using LT leads
Notes
■ The wires coming from the RPM box are two ends of a piece of wire; there
are no electrical connections inside the box. The ignition signal is
unchanged, as long as the connections are good.
■ The RPM Box can be sensitive to the direction of the current pulse it
receives. If this causes a problem, try connecting it into the other terminal
of the ignition coil. This reverses the direction of the current flowing in the
wire and should resolve the problem.
■ If the spade connectors on the RPM Box do not fit the terminals on your
vehicle, we suggest you replace the connectors on our box. You can then
remove the RPM box at a later date, if you wish.
37
RPM Box HT connection
The HT (High Tension voltage) connection consists of a single wire running from the bullet
connector in the RPM Box and wrapped around the HT lead of the vehicle. A piece of wire
(high temperature rated) with a bullet connector has been included with the RPM Box for
this purpose.
C-dash
Wire from bullet
connector wound and
taped to master HT
lead
RPM
box
LTa
LTb
Ignition
Control
Unit
Ignition
coil
Original
wiring
The RPM Box connected to HT lead
The wire should be wrapped around the master HT lead about five times: any excess can
be clipped off and then secured with tape. The RPM box LT connections are not used and
can be joined together and taped up.
38
C-dash User Guide
Installation
HT pickup – detail
NOTE: The RPM Box is sensitive to the polarity of the HT pulse it receives. If this
causes a problem, try using the LT pickup method.
Setting up the RPM Box
The dash needs to be set up to use the signal from the RPM Box. This is done by setting
the RPM Pulse type to D. The RPM Box has a small 16-position switch which needs to
be set to match the signal received. Legends for positions 0, 4, 8 and C (=12) are printed
on the box, but the intermediate settings are available. Settings 0 to 7 should be used with
LT (ignition coil) connections. Settings 8 to F should be selected if using the HT
connection.
HT settings
(8 to F)
E
D
C
B
A
F 01 2
3
LT settings
(0 to 7)
4
9
8
7
6
5
Switch currently
set to 3
RPM box switch settings
39
The settings are related to the number of sparks per minute the engine needs at maximum
RPM, as in the following table:
Max. sparks/min.
LT
HT
Typical example
11,000
19,000
36,000
45,000
54,000
64,000
85,000
95,000
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
11,000 RPM 2-stroke (11,000 sparks/min.)
7,500 RPM 4-stroke (15,000 sparks/min.)
V8 single coil 4-stroke (30,000 sparks/min.)
Notes
■ RPM measurement is more reliable when unwanted signals are filtered out.
Setting the box sets the frequency at which signals are filtered out, e.g.
Setting 1 filters out signals higher than 19,000Hz.
■ If the RPM reading on the dash starts to flash at high RPM, try increasing
the setting by one or two positions.
■ Do not be afraid of experimenting until you find the correct setting for your
vehicle, as an incorrect setting will not damage the unit.
Example Setups
4-cylinder 4-stroke
A 4-cylinder, 4-stroke engine generating 2 sparks/revolution, at 7500 RPM maximum
requires the RPM Box to respond to 15,000 sparks/min. The switch then needs to be set
to 1 for LT pickup or 9 for HT pickup.
40
RPM Box
1 (LT)
9 (HT)
Dash RPM Settings:
PULSE
4
[pulses per 2 revolutions]
C-dash User Guide
1-cylinder 2-stroke
RPM Box
1 (LT)
8 (HT)
Dash RPM Settings:
PULSE
2
[pulses per 2 revolutions]
Installation
A single cylinder, 2-stroke engine generating 1 spark/revolution, at 11,000 RPM maximum
requires the RPM Box to respond to 11,000 sparks/min. The switch on the RPM Box
needs to be set to 0 for LT pickup or 8 for HT pickup.
The dash assumes a normal 4-stroke engine that runs from one ignition coil. 1-cylinder
2-stroke engines fire on every rotation and appear as 2-cylinder engines.
4-cylinder 4-stroke with double coils
A 4-cylinder, 4-stroke engine with double coils generating 1 double spark/revolution per
coil, at 13,500 RPM maximum requires the RPM Box to respond to 13,500 sparks/min.
The switch then needs to be set to 1 for LT pickup or 9 for HT pickup.
Care must be taken to ensure that the RPM Box only picks up signals from one of the
coils. Then set the RPM PULSE to 2.
41
Pressure measurement
75.00 (2.95”)
58.00 (2.28”)
1/8 NPTF thread
ø 75.0
ø 2.95”
ø 46
ø 1.81”
22.00
0.86”
connector terminals
Hex 17 A/F
Pressure Sensors (dimensions in millimetres and inches)
Standard Pressure sensor
Operating Range
Mounting
Connector
Connections
Explosion rating
0 to 200 psi
0 to 14.07 Kgf
0 to 13.78 bar
7mm 1/8 NPTF thread
2 off 4mm ring tag
non-polarized (5V and signal wires)
35 bar
The same sensors are used for fuel and oil pressure measurement. The colour coded
wiring on the loom determines how they should be connected (see Part B: Fitting the
wiring loom).
The connections to the standard sensor are made using 4mm ring tags. They are
unpolarised and can be connected either way around.
Other pressure sensors are available, which use spade connectors, instead of ring tags.
42
C-dash User Guide
Mounting the pressure sensors
Mount the pressure sensors on a side pod near to the fuel/oil pumps using tie-wraps and
rubber pads.
Pressure sensor
Connected to
loom
Oil/fuel pipe
Indirect fitting of pressure sensors
43
Installation
Indirect fitting
Temperature
measurement
Hex 12.6 A/F
1/8 NPTF thread
Ø10.0
Ø0.39"
Ø8.0
Ø0.31"
17.0
0.66"
22.0
0.86"
125.0
4.92"
27.0
1.06"
Imperial thread Temperature Sensor
Temperature sensor (Imperial)
Operating Range
Accuracy
Mounting
Connector
Connections
0°C to 150°C (32° to 302°F)
±2.5°C (±4.5°F)
7mm 1/8 NPTF thread 17mm extending past thread
2-pin Cannon Sure-Seal
Pin 1 (White)
Signal
Pin 2 (Red)
Power (12V)
WARNING: The sensors can be adversely affected by water. Waterproof
connectors have been supplied, but it is essential to use the silicone sealing
compound to prevent water reaching the connectors from the loom wiring.
If water penetrates the connector, dry it out, reconnect, then seal using a silicone sealant.
The sensors for coolant and oil temperature are exactly the same. The colour coded wiring
on the loom determines how they should be connected (see Part B: Fitting the wiring
loom).
44
C-dash User Guide
Mounting the temperature sensors
Mount the oil and coolant temperature sensors in the piping of the engine.
The oil temperature sensor is normally mounted either in the sump area or in the piping
of the oil pump.
NOTE: The sensors have their own earth, so earthing the body of the sensor or
isolating it from the vehicle will have no adverse effect.
45
Installation
The coolant temperature sensor is normally mounted in the piping of the cooling system,
either in an existing mounting point or by braising and threading an extra one.
Lap timing
M4 x 4.00 deep
3 posns
Channel selector 0-9
(spot is channel 0; selection
is clockwise from spot)
8.50
0.33"
16.0
0.63"
Infrared detector
23.50
0.92"
32.0
1.26"
20.0
0.78"
10.25 (0.40")
Power / Lap
(yellow LED)
48.5 (1.90")
58.0 (2.28")
10 channel Beacon Detector
The Beacon detector
Mounting
Channels
Connector
Connections
Industrial Velcro® or 3 off M4 holes in the base.
0 to 9
3-pin Cannon Sure-Seal
Pin 1 (Green)
Ground
Pin 2 (Blue)
Signal
Pin 3 (Red)
Power (12 V)
Notes
■ The Beacon detector should be mounted at right angles to the ground and
at right angles to the direction of the vehicle in motion.
■ Where possible, the detector should be mounted flush to the skin of the
vehicle, or recessed less than 25mm.
■ Where possible, the receiving head should not face directly into the sun
while detecting.
46
C-dash User Guide
Mounting the Beacon detector
The Beacon detector should be mounted so that it can point at either side of the track. It
is often placed by the roll hoop or above the driver’s headrest.
Installation
The detector is fixed to the vehicle with Industrial Velcro® (supplied by Pi Research).
Side wall of car
(aperture 33mm minimum; or
10mm if flush mounted)
Detector’s field of view is
approx. ± 20 °
Position receiver at same height
above ground as Beacon
transmitter
25.0mm
1.0" max.
Beacon detector placement
47
Beacon transmitter
(Front view)
(Side view)
Power on
LED
Channel
selector
80.0
3.14"
Transparent
cover
82.0
3.22"
24.0
0.94"
55.0
2.16"
Beacon transmitter
Beacon transmitter
Mounting
Channels
Connector
Connections
Industrial Velcro® or tape
0 to 9
2 screw posts
Red post +12V; Black post 0V
Notes
■ A fully charged 12V vehicle battery or rechargeable dry cell battery can be
used to run the Beacon transmitter.
■ Make sure that the channels selected on the detector and transmitter are
the same.
■ The transmitter should be mounted at the same height as the detector on
the vehicle, with the transmitter beam pointing horizontally and aimed
straight across the track. Make sure the detector is not pointing into the sun
when it passes the transmitter.
48
C-dash User Guide
30m/100ft maximum
3m/10ft minimum
Position transmiter
same height from
ground as receiver
Installation
Nominal beam angle 26 °
Pit
wall
Siting a Beacon transmitter (driver’s view)
If several Beacon transmitters are in use at a track do not place them so close together
that their beams interfere with one another, as this could give rise to spurious lap times.
The following diagram shows the minimum separation distances to be observed.
Pit
wall
6m/20ft
min.
Nominal beam angle 26 °
4m/13ft
min.
Nominal beam angle 26 °
Nominal beam angle 26 °
Pit
wall
Minimum separation of transmitter Beacons (plan view)
49
Optional sensors and
interface boxes
There are range of sensors and interface boxes available for use with your C-dash. These
can replace some of the standard sensors supplied.
The table below details which sensors and interface boxes can be used on which
channels. Please note that the C-dash channels are pre-calibrated and cannot be used
with alternative sensors unless they appear in the table.
Standard Channel
Alternative Use
Optional sensors
Wheelspeed
ABS wheelspeed
Boat speed
Fastest/slowest wheel speed
RPM
EGT
Turbo pressure
Carburettor pressure
Turbo pressure
Carburettor pressure
Sequential gear position
ABS sensor interface box
Waterspeed sensor
Wheelspeed selector box
Tacho pulse input
System 2 thermocouple + amp
Pressure sensor (low)
Pressure sensor (low)
Pressure sensor (low)
Pressure sensor (low)
Depends on gearbox design
RPM
Oil temperature
Oil pressure
Fuel pressure
50
C-dash User Guide
ABS sensor
interface box
to loom
green
Installation
blue
red
ABS sensor
interface box
earth (bare)
red
from ABS sensor
black
ABS sensor Interface Box
Grey lead connects to ABS sensor
Black lead connects to the wheelspeed connector on the C-dash loom
ABS sensor interface box
Mounting
Industrial Velcro®
ABS sensor connections
Maximum input freq.
Connector
Connections
99 pulses per wheel revolution
Un-terminated
Foil
Screen (do NOT connect)
Red
Signal
Black
Reference
51
The C-dash connections
Connector
Connections
Un-terminated or 3-pin Canon Sure-Seal
Pin 1
Green
Ground (0V)
Pin 2
Blue
Signal
Pin 3
Red
Power (12V)
The ABS sensor interface box enables the C-dash to take wheelspeed information from
an existing ABS (Anti-lock Brake System) speed sensor. ABS speed sensors provide a
robust wheelspeed measurement on touring and rally cars where mounting of the
standard C-dash wheelspeed sensor might provide difficult.
The interface box has been designed for use with two wire ABS speed sensors (passive
type).
WARNING: If the ABS speed sensor is also used by the ABS system on the
vehicle, the two wires from the C-dash interface box should be connected to the
sensor connections via 100µ F 16V capacitors, with the negative side of the
capacitor going to the sensor. If in doubt please contact your Pi representative.
Do not connect any wires directly to the chassis of the vehicle.
52
C-dash User Guide
Waterspeed sensor
Installation
2.0 to 3.0 metres
6.5 to 10ft
SureSeal plug
boat hull
wheelspeed sensor
Waterspeed Sensor attachment
Waterspeed sensor
Sensing type
Mounting
Mounting position
Connector
Connections
Hall effect pick-up off 6 point paddle wheel
Via two 5mm mounting slots
On boat’s transom in smooth water flow
3-pin Cannon Sure-Seal
Pin 1
Shield
Ground
Pin 2
Orange
Signal
Pin 3
Blue
Power (5–12V)
Yellow
n/c
The waterspeed sensor can be used to measure boat speed through the water. The
sensor can measure the effective speed of offshore boats which may be out of the water
up to 50 percent of the time.
53
The sensor should be mounted on the boat’s transom where the flow of water is least
turbulent. The left (port) side of the transom is preferable; if it is impractical to mount it
there, the right side can be used. Don’t mount the sensor behind strakes or ribs, as these
disturb the water flow to the speed sensor. Also make certain that the sensor will remain
in the water even when the boat is on plane. The sensor is generally mounted about one
foot from the boat’s centre line.
boat hull crosssection
poor location
good locations
Positioning the Sensor on the hull
When setting ‘tyre size’ and ‘triggers’ on the dash, try using 650mm and 20 pulses/rev. A
hand held Global Positioning System can be used to check the calibration.
If you experience any problems, contact your Pi representative.
54
C-dash User Guide
Wheelspeed selector
box
mounting
box
A
K
Installation
pin lettering
scheme
peg
B
C
F
Wheelspeed selector box connector pinout
Wheelspeed selector box
Mounting
Supply voltage
Supply current
Connector
Connections
Fastest signal (H)
Slowest signal (K)
Industrial Velcro®
6–18V
4mA
KPT 2E 12-10P (Cannon or equivalent)
Pin A
Wheelspeed 1 sensor signal
Pin B
Wheelspeed 1 sensor reference
Pin C
Wheelspeed 1 screen
Pin D
Wheelspeed 2 sensor signal
Pin E
Wheelspeed 2 sensor reference
Pin F
Wheelspeed 2 screen
Pin G
Supply 0V from dash
Pin H
Fastest wheelspeed signal to dash
Pin J
Supply 12V from dash
Pin K
Slowest wheelspeed signal (5V only)
Open drain output which can be connected to the C-dash
Open drain output which can be connected to the C-dash
The wheelspeed selector box monitors any two ABS speed sensors and outputs the
fastest and slowest values. The fastest speed should be used in applications where
55
wheels may lock during severe cornering (e.g. touring cars). The slowest speed should
be used in applications where wheels may spin due to poor traction (e.g. rallying).
The dash must be set up for the number of triggers on the ABS sensor wheel.
If the ABS speed sensor wires are long or run through an electrically noisy environment,
it may be advantageous to use screening braid. This should only be connected to the
selector box and must not be allowed to earth to any metalwork on the vehicle.
WARNING: The 12V supply (Pin J) for the selector box should come from the
C-dash, not directly from the vehicle battery.
Do not connect supply 0V (Pin G) if the ABS speed sensors are earthed.
56
C-dash User Guide
Turbo/carburettor
pressure sensor
Installation
The low pressure sensor has the same physical dimensions as the standard C-dash
pressure sensor.
Turbo/carburettor pressure sensor
Operating Range
Mounting
Connector
Connections
Explosion rating
0-40 psi (0 to 2.5 bar)
7mm 1/8 NPTF thread
2 off 1/4-inch female blade
non-polarised
35 bar
This low range pressure sensor can be used to measure turbo charger pressure or
carburettor fuel pressure. The sensor reads down to 0 psi. Care must be taken when
attempting to measure carburettor pressure: pressures caused by lateral or longitudinal
g may generate pressure readings to the same level as those caused by draw of the
carburettor.
The relevant pressure channel must be configured as tbar under the Setup UNITS page.
57
Thermocouple sensor
300.0 mm
12.0" nominal length
K
K-type
thermocouple
connector
Thermocouple
amplifier box
metal
braiding
SureSeal
plug to
loom
Ø 10.0 mm
Ø 0.39"
thermocouple
sensor
50.0
1.96"
Thermocouple Sensor
58
C-dash User Guide
Ø 6 mm
Ø 0.23"
50.0
1.96"
Thermocouple probe and amplifier
Operating range
Mounting
Connector
Connections
100°C to 999°C
With lock nuts
K-type
Blue
White
Installation
Probe
–ve
+ve
Amplifier
Mounting
Sensor connector
System connector
Connections
Velcro
K-type
3-pin Cannon Sure-Seal
Pin 1
Green
Pin 2
Blue
Pin 3
Red
Ground (0V)
Signal
Power (12V)
The thermocouple is used to measure exhaust gas temperature (EGT) on vehicles with
2-stroke or 4-stroke engines. On 2-stroke karts, EGT is a good indicator of fuel mixture.
Extension leads can be used in conjunction with the sensor, but they must have the same
metals and polarity.
59
Setting up the gear
number option
You can set the C-dash to display the gear number. The gear number option replaces the
Fuel Pressure input.
To set up gear numbers:
1
Fit a potentiometer to the gear box so that the output of the potentiometer
depends upon the gear selected.
2
Connect the output from the potentiometer to the Fuel Pressure input
channel.
3
Click and hold the (CHANNEL) and (MODE/LAP) switches so that the C-dash goes
into Setup mode.
4
Click the (CHANNEL) switch until the Options page appears.
5
Click and hold the (CHANNEL) switch until the Bright page appears.
6
Click the (CHANNEL) switch until the Gears page appears.
7
Click (MODE/LAP) switch to select the number of gears you have.
8
Click the (CHANNEL) switch. The Neutral Gears setup page appears.
The raw count from the gear box potentiometer is displayed on C-dash field 4.
9
10
11
12
13
Select neutral gear position on the gearbox.
Click the (MODE/LAP) switch. The raw count input for neutral gear is stored and
the C-dash gear number display changes to 1.
Select first gear and click the (MODE/LAP) switch. The raw count for first gear
is stored and the C-dash gear number display changes to 2 ready to record
the raw count for second gear.
Repeat step 11 to store the raw count for each gear.
Click and hold the (CHANNEL) and (MODE/LAP) switches so that the C-dash
returns to Realtime Page A mode.
The Gear number can be viewed on Realtime Page B in field 4 before the vehicle has
been driven. In Race mode the gear number is shown in the page ident field of the C-dash.
60
C-dash User Guide
Remote push buttons
Mount the buttons so that they can easily be reached by the driver. They should be
installed so that the (CHANNEL) button is on the drivers right.
(MODE/LAP)
(CHANNEL)
LEFT
(Green)
RIGHT
(Red)
2
1
2
1
(Switches loom – green wire)
(Switches loom – black wire)
(Switches loom – red wire)
(Switches loom – black wire)
Remote push buttons
Connecting the remote push buttons
The remote push buttons are connected to the switch branch of the loom that has the
yellow collar. You can fit the C-dash and remote push buttons onto a steering wheel, or
use the optional switches extension loom to fit the C-dash onto a dash panel.
To fit the remote push buttons:
1
Fit the remote push buttons to the dash panel or the steering wheel.
2
Fit 200mm lengths of heatshrink DR25 1/8 black heatshrink over wires for
switch 1.
For wire details refer to table Switches loom (yellow sleeve) wire details in Part E.
3
Repeat step 2 for the wires for switch 3 and if used, for switch 2, switch 4 and
the Dimmer inputs.
If switch 2, 4 and dimmer inputs are used, a wire from switch 1 or switch 3 ground is
needed for the ground signal for these inputs. If these inputs are not used the wires may
be cut off and taped under the ATUM 12/4 heatshrink junction. MAKE SURE THEY DO
NOT TOUCH EACH OTHER OR CHASSIS.
61
Installation
The remote push buttons are used to control the C-dash. The buttons are normally-open
momentary push buttons which pull an input on the dash to ground when pressed.
4
5
6
7
8
9
Seal the sleeving junctions at the loom with a 50mm piece of ATUM 12/4 glue
lined heatshrink. Crimp closed the end of the heatshrink in between the
cables whilst the heatshrink is hot.
Place a piece of small heatshrink sleeve on each wire. Do not shrink the
sleeve.
Solder the wires to the remote push buttons.
Move the heatshrink sleeve over solder joint and shrink the heatshrink.
Fold the wires back next to the switch body.
Cover the wires, the body and the terminals of the switch with a 25mm length
of ATUM 12/4 heatshrink. Crimp closed the end of the heatshrink around the
terminal end of the switch when the heatshrink is still hot.
LEFT
(Green)
ATUM 12/4
heat shrink
RIGHT
(Red)
ATUM 12/4
heat shrink
Switches loom
(Yellow collar)
Switch 2
Switch 4
Dimmer
DR25 1/8 Black
heat shrink
Fitting the heatshrink to the loom
62
C-dash User Guide
Fitting the buttons to a
steering wheel
(MODE/LAP)
Installation
When fitting the buttons to a steering wheel ensure that the push buttons cannot
accidentally be pushed when the steering wheel is being turned.
(CHANNEL)
switch (Ø 7 mm)
(Green)
switch (Ø 7 mm)
(Red)
Push buttons fitted to a typical steering wheel
Connecting the switches extension loom
1
Locate a position for the D type socket on the dash panel.
2
Cut the wires on the C-dash switches loom to reach the D type socket. Cover
the wires with 3/8 DR25 heatshrink.
3
Cover the joint between the new heatshrink and the existing sleeving with a
50mm piece of ATUM 12/4 glue lined heatshrink.
4
Place a piece of small heatshrink sleeve on each wire. Do not shrink the
sleeve yet.
5
Solder the wires to the D type socket. Refer to the table Switches loom (yellow
sleeve) to D type socket wiring details Part E.
6
Move the heatshrink sleeve over each solder joint and shrink the heatshrink.
7
Fit the D type socket into the vehicle dash panel. The socket can be fitted to
the dash panel by removing the connector hood and using the 2 female screw
posts. Use a thread locking glue to stop the nuts from rotating free.
63
8
Fit the remote push buttons to the extension loom following the instructions
given in section To fit the remote push buttons.
Note: The ground wire for Switch 3 in the Switch extension loom is brown, NOT black as
in the Switches loom (yellow sleeve).
64
C-dash User Guide
By this stage you should have mounted the C-dash and all the sensors on the vehicle. You
are now ready to connect everything together. The loom is supplied in two parts, one part
for C-dash display functions and the other to connect sensors to the C-dash. Each part is
terminated at one end with a Deutsch connector.
Connect the loom to
the C-dash
Take the two parts of the loom and plug the Deutsch connectors into the respective mating
connectors on the rear of the C-dash. To aid identification, the display part of the loom has
a blue collar, and the sensors part of the loom has a red collar.
Lay the loom in the car
The wires for each of the sensors are grouped, colour coded and tagged with their identity.
Run the wires to each of the sensors on the car. Take care to avoid sharp metal edges
and cables carrying high voltages (e.g. ignition circuits).
System supply
You may need to untwist the power and ground supply wires if the battery is at the front
of the vehicle (connect red wire from loom) and the Master switch is towards the rear
(connect black wire from loom).
Beacon
Run the Beacon connections to a suitable position (e.g. by the roll hoop), even if you do
not yet have a Beacon kit.
65
Installation
Part B : Fitting the wiring loom
Secure unwanted
sensor wires
Isolate any wires you are not using near the dash and insulate the ends with tape. Keep
the sleeve and wire idents on the loom to facilitate identification at a later date.
Cut the Loom to size
Now that the loom is lying in the car, you can determine how long each group needs to
be. Before cutting the wires, the loom should be consolidated by grouping sensor wires
together and taking branches where particular sensors require it.
C-dash
yellow
collar
blue
collar
red
collar
The wiring loom
You should use tape at each branch point to hold the loom in shape.
The individual sensor groups are now ready to be cut to length. Use tape to mark the
length required, untwist the wires and slide the ident sleeve AND individual wire idents to
the marked point. Be sure to leave enough length so that connections are not under
stress.
66
C-dash User Guide
Cut the branches to length and tie the loose ends to prevents the idents sliding off. Cut
all the wires to the same length for each sensor.
Installation
Fit the connectors and spiralwrap. In most cases, you can do this more easily if you
remove the loom from the car.
Fit Sure-Seal
connectors to the loom
The Oil temperature, Coolant temperature, RPM, Wheelspeed, and Beacon sensors are
supplied terminated with 2-pin or 3-pin Cannon Sure-Seal connectors. You must fit the
respective connector to the sensor loom. The sensor loom is then connected to the Cdash via a Deutsch connector. The connections for each sensor wire are given in the
tables below.
Note that on the loom, pin 1 is always a socket and pins 2 and 3 are always pin contacts.
2-pin Cannon Sure-Seal
Function
Pin1 (socket)
Pin2 (pin)
Oil temperature
Coolant temperature
Yellow
Blue
Red
Red
3-pin Cannon Sure-Seal
Function
Pin1 (socket)
Pin2 (pin)
Pin3 (pin)
RPM
Wheelspeed
Beacon
Black
Black
Black
Violet
White
Green
Red
Red
Red
67
Crimping a contact onto each wire
Take one wire (for example, the yellow wire for the Oil Temperature):
1
2
3
4
Strip approximately 8mm of insulation off the wire, taking care not to cut the
wire itself.
Twist the strands of wire together.
Fold the stripped portion of the wire in half to form a tight loop.
Take a contact (socket for yellow wire) from the plastic bag and place it in
aperture 3 of the crimp tool provided.
The two smaller clamping prongs should be facing the ‘W’ shaped part of the tool.
Before crimping
After crimping
Waterproof connector crimp connections
5
6
Push the looped end of the wire right into the contact and crimp it by
squeezing the handles all the way together.
Fold in the cable grip wings one at a time.
Use the flat front end section of the crimp tool (or a small pair of pliers) to fold in the cable
grip wings one at a time, to hold the cable insulation.
7
Crimp the cable grip wings.
Finally, using aperture 3 of the crimp tool, crimp the cable grip wings so that they actually
grip the insulation on the wire.
68
C-dash User Guide
8
Repeat this process to crimp a pin contact onto the red wire for the oil
temperature connector.
Installation
Insert the contact into the connector
Socket
1
1
2
3 2
Pins
Cannon Sure-Seal connectors viewed from rear
1
2
3
4
5
Take one of the rubber 2-way connectors from the bag, and locate the contact
insertion tool provided.
Slide the slot in the tool over the yellow wire (for example) and push the tool
up to the neck on the contact.
Pick up the connector and push the contact firmly into hole 1 in the body until
it is flush with the mating face on the inside of the connector.
Check that the contact is correctly located in the body then withdraw the tool.
Repeat this process for the red wire, pushing it into hole 2 on the connector.
Waterproof the
Sure-Seal connectors
The Sure-Seal connectors must be fully waterproofed. This is done by sealing the rear of
the loom connectors with the silicone sealer provided to stop water penetration. Once
applied, leave the silicone to cure for one hour.
WARNING: Failure to waterproof the multiway connectors will not damage your
C-dash but certain readings can be affected by water.
69
Repeat the process for
each sensor
After the Oil temperature sensor has been connected, repeat the entire crimping and
insertion process for the:
■
■
■
■
Coolant temperature sensor
RPM sensor
Wheelspeed sensor
Beacon sensor
WARNING: Failure to terminate any of the wires could lead to a short circuit of
the dash.
Fit the spade
connectors
Use the spade connectors for 0—40 psi and 0—120 psi pressure sensors.
Unpolarised blade connections
Oil Pressure
Fuel Pressure
1
2
3
4
70
C-dash User Guide
Black
Black
Green
White
Once cut to length, strip about 5mm of insulation off each wire. DO NOT
LOOP the wire.
Take a spade connector and grip it gently in the crimp tool. Slide the wire into
the connector until it hits the small stop.
Squeeze the tool to crimp the connector, making sure that the bare wire is
crimped securely.
Repeat this process for the remaining wires.
Fit the 4mm ring tags
Use the 4mm ring tags for 0—200 psi pressure sensors.
Oil Pressure
Fuel Pressure
Black
Black
Installation
Unpolarised 4mm ring tags
Green
White
Repeat the procedure for the spade connectors detailed above.
Use the knurled finger nut and split washer to secure the ring tag to the sensor.
NOTE: Ensure that the spit washer is between the ring tag and the knurled finger nut.
Fit the spiralwrap
Starting at the sensor/branch ends fit the spiralwrap to the loom, using the small size for
2 or 3 wire groups and the larger size for 4 or more. Wrap all the way back to the
connector at the dash end of the loom.
Once the loom has been wrapped it is finished and can be reinstalled in the vehicle.
Reinstall the loom
1
Connect the dash, sensors and the power connections to the loom.
71
Part C: System checks and Power-up
Check the installation
Before turning the C-dash on, check:
■
■
■
■
■
the clearance on the wheelspeed sensor
the freedom of wires from moving parts
the silicone sealant on the connectors
the connectors on the back of the dash
no wires have been left un-terminated.
Turn the C-dash on
When you turn on the Master switch the C-dash powers-up. (Note that on some
installations the ignition must also be turned on.)
Realtime page A is displayed. By clicking the (CHANNEL) button you can switch between
Realtime pages A and B to view the values being measured on each sensor.
The road wheel can be rotated backwards and forwards to get the wheelspeed sensor to
trigger.
The RPM display shows 0 until the engine is running.
The battery voltage of the vehicle is displayed.
Once the dash has been configured to use a Beacon detector (see below), waving a
powered beacon transmitter in front of the detector causes lap times on the display to
change. Make sure the channel settings on the Beacon and the beacon transmitter are
the same.
72
C-dash User Guide
Set up the C-dash
Installation
Before using the C-dash, you must set up it to show the correct RPM, Speed and Units,
etc. If you are using a Beacon, this must also be set on the C-dash. Refer to the Setup
section.
WARNING: When you set up your C-dash please take time to write down the
settings and have them available when seeking technical support from
Pi Research.
Troubleshooting
All the troubleshooting hints are in a separate section. If you have any problems with your
C-dash, refer to the section Troubleshooting.
73
Part E: Wiring details
C-dash wiring
Information
Deutsch connector details
Item
Loom connector
C-dash connector
Display loom (blue collar)
Sensors loom (red collar)
Plug IMC26-2212X
Receptacle IMC21-2212X
Receptacle IMC21-2212X
Plug IMC26-2212X
1
9
1
1
1
9
10
12-way plug and 12-way receptacle viewed from front
Pi Research Part Number for the 12–way receptacle is 09G-0297 and the 12–way plug
is Part Number 09G-0298.
Display loom (blue collar) connector pin details
74
Pin
Function
Pin
Function
1
2
3
4
5
6
Udders/ECM in
Udders out
Data to PC
Data from PC
Wheelspeed
Beacon
7
8
9
10
11
12
Battery +
+12V for sensors
Over rev
Battery –
Ground
Ground
C-dash User Guide
Pin
Function
Pin
Function
1
2
3
4
5
6
Oil pressure
Fuel pressure
Coolant Temperature
Oil temperature
Dimmer
RPM
7
8
9
10
11
12
+12V
+12V
+5V
Ground
Ground
Beacon†
†
Installation
Sensors loom (red collar) connector pin details
Can be used instead of Display loom pin 6.
Switches loom (yellow collar) unterminated wiring details
Colour
Function
Colour Function
Green
Blue
Red
White
Yellow
Switch 1 (Green button)
Switch 2 input
Switch 3 (Red button)
Switch 4 input
Dimmer input
Black
Black
Ground
Ground
Female blade connectors (for 0—40 psi pressure connection)
Sensors
Pins
Colours
Length (mm)
Turbo Pressure
2
Black, Green
2000
4mm Ring tags (for 0—200 psi pressure connection)
Sensors
Pins
Colours
Length (mm)
Oil Pressure
Fuel Pressure
2
2
Black, Green
Black, White
2000
2000
75
8mm Ring tags (for power connection)
Function
Colour
Length (mm)
System power
System ground
Red
Black
2000
2000
Waterproof ITT Cannon Sure-Seal connectors
76
Sensor
Pins
1
2
3
Length (mm)
Oil Temp
Coolant Temp
Beacon
RPM
Wheelspeed
2
2
3
3
3
Yellow
Blue
Black
Black
Black
Red
Red
Green
Violet
White
—
—
Red
Red
Red
3000
3000
2000
3000
3000
C-dash User Guide
Setup
Setup
Setup mode
This section describes in detail how to setup the C-dash. You will need to do this when
you first install a C-dash. You may also wish to adjust alarm thresholds when you are more
familiar with the C-dash.
Some of these parameters only need to be set once, when C-dash is installed. However,
you may wish to adjust parameters such as the RPM over-rev light more frequently.
The table below shows how Parameter values are organised in Setup Groups. The table
on the next page summarises the C-dash remote button operations for editing parameter
values in Setup mode.
Parameter values
Setup groups
UNITS
Speed/ Temperature/ Fuel Pressure/ Oil Pressure
ALARMS
Oil Temp./ Coolant Temp./ Oil pressure/ Fuel pressure/ Battery
BEACON
Beacon fitted/ Mode/ Type
RPM
Redline/ Pulses/ Overrev/ Telltale type
WHEELSPEED
Tyre diameter/ Triggers/ Outing speed
OPTIONS
DEFAULTS
Brightness/ Speed/ Dash type/ Gears/ RTD Option
Reset ALL fields to defaults
NOTE: Repeat the steps for setting parameter values as often as necessary before
saving the current settings. We suggest you setup the Unit parameters first.
79
Setup
To allow the C-dash to be used on a wide range of vehicles, there are a number of
parameters that can be adjusted to your particular requirements.
80
To do this:
Do this:
Enter Setup mode:
Press and Hold (MODE/LAP) and (CHANNEL)
buttons together
Step through Setup groups:
Click (CHANNEL)
Inspect or alter a Setup group:
Press and Hold (CHANNEL)
Step through Parameter values:
Click (CHANNEL)
Increment values:
Click (MODE/LAP)
Auto-adjust values:
Press and Hold (MODE/LAP)
Save the current settings within each Setup
group:
Press and Hold (CHANNEL)
Save all current settings:
Press and Hold (MODE/LAP) and (CHANNEL)
buttons together
C-dash User Guide
Entering Setup mode
The vehicle must be powered up, stationary and in Realtime mode. You cannot access
Setup mode from Race mode.
Press and Hold the (CHANNEL) and (MODE/LAP) buttons for two seconds.
Setup
1
The dash shows the Setup Page for a few seconds and then shows the first Setup Group,
Units.
Selecting a Group
1
Click the (CHANNEL) button to cycle through the Groups.
Stop on the one you want to view or change.
2
Press and Hold the (CHANNEL) button.
Selecting a Parameter
1
Click the (CHANNEL) button to cycle through the parameters until you reach the
one required.
81
You can either Alter or Inspect a parameter:
Altering a parameter
There are two ways to alter the value of a parameter once you have selected it: Step mode
and Auto-adjust mode.
Step mode
Step mode is most suited to values that have a small range, or only switch from Yes to
No.
1
Click the (MODE/LAP) button to increment the value of a parameter one step at
a time.
Auto-adjust mode
This mode is most suited to parameters that have a wide range of values, such as
temperatures or tyre diameter.
1
First Press and Hold the (MODE/LAP) button.
If auto-adjust is available for a parameter, the digits will start to flash between 0 and 9.
2
Click the (MODE/LAP) button to freeze each digit at its correct value, starting
with the left-most digit.
Once all the digits have been frozen, auto-adjust mode ends automatically.
NOTE: If you make a mistake, click the (CHANNEL) button until the parameter reappears,
and the start adjusting the value again.
82
C-dash User Guide
To Inspect or Alter other parameters in the Group
1
Click the (CHANNEL) button.
To Return to the Setup Groups
1
Press and Hold the (CHANNEL) button to return to the Setup Groups.
You can then select another Group of parameters or leave Setup mode.
To leave Setup mode
To save the parameters and exit from Setup mode:
Return to the main Setup Groups.
Press and Hold the (CHANNEL) and (MODE/LAP) buttons for two seconds.
Setup
1
2
To Exit without saving changes
If you make a mistake or change your mind, you can restore the previously stored settings
by switching off the dash (e.g. with the master switch) before exiting Setup mode.
83
Units
The following parameters may be measured in various units. Select the ones you prefer
when setting the dash.
Setup
Options
Default
KPH/MPH
°C/°F
PSI/KGF/bar/Tbar
PSI/KGF/bar/Tbar
MPH
°C
PSI
PSI
Units
Speed
Oil/Water temperature
Fuel pressure1
Oil pressure2
1
Fuel Pressure not shown when Gear Numbers have been set in Options.
2
Oil Pressure not shown when the RTD option has been set to either °C or °F in Options.
The Units setup page is momentarily displayed, and then the next Units setup page,
Speed is displayed.
84
C-dash User Guide
Speed
Setup
Set the Speed units to either miles per hour (mph) or kilometres per hour (kph).
Oil/Water Temperature
Set the Temperature units to either Celsius (°C) or Fahrenheit (°F).
85
Fuel Pressure
Set the Pressure units to either pounds per square inch (psi), kilogram force (kgf),
100,000N/m2 (bar), or Tbar (bar) for turbo sensors (0 to 2.5 bar).
Oil Pressure
Set the Pressure units to either pounds per square inch (psi), kilogram force (kgf),
100,000N/m2 (bar), or Tbar (bar) for turbo sensors (0 to 2.5 bar).
86
C-dash User Guide
Alarms
You must set the values for the following parameters as the highest value allowable before
an alarm is triggered:
■
■
Oil temperature
Coolant temperature
You must set the values for the following parameters as the lowest value allowable before
an alarm is triggered:
Oil pressure
Fuel pressure
Battery voltage
Setup
■
■
■
NOTE: If either pressure channel is setup as a turbo channel, the respective pressure
alarm LED can be set to come on when the turbo drops below a given value.
Setup
Min.
Max.
Default
0
0
0
0
0
0
999
999
999
999
20.0
999
100
100
100
100
100
100
Alarms
Oil temperature
Coolant temperature
Oil pressure
Fuel pressure
Battery
RTD temperature*
* Appears instead of Oil Pressure alarm when the RTD option has been set to either °C
or °F in Options.
87
Alarms setup page
Oil temperature alarm setup page
Sets the threshold for the oil temperature alarm. The temperature scale (°C/°F) is the one
set in the Units group.
88
C-dash User Guide
Coolant temperature alarm setup page
Setup
Sets the threshold for the coolant temperature alarm. The temperature scale (°C/°F) is the
one set in the Units group.
Oil pressure alarm setup page
Sets the oil pressure alarm threshold. The pressure scale (psi/KGF/bar/tbar) is the one
set in the Units group.
89
Fuel pressure alarm setup page
Sets the fuel pressure alarm threshold. The pressure scale (psi/KGF/bar/tbar) is the one
set in the Units group.
Battery voltage alarm setup page
Sets the battery voltage alarm threshold.
90
C-dash User Guide
Beacon
Use these options to set the Beacon parameters.
Setup
Options
Default
No/Yes
Fix/Run
Sys1/Sys2
No
Fix
Sys2
Fitted
Mode
Beacon type
Setup
Beacon
Beacon fitted
If you have the Beacon kit installed, set this option to YES to detect Beacon pulses.
91
Mode
The lap timer can be setup to show the lap time for the previous lap (Fix), or as a running
timer (Run).
Type
Select the type of beacon you have fitted. Choose between System 1 beacon detector or
System 2 beacon detector.
92
C-dash User Guide
RPM
Use these options to set red line value (or Overrev), number of ignition pulses and redline
alarm duration. Instructions on setting up the RPM are included in the Installation Notes.
Setup
Min.
Max.
Default
0
0
0.01
RPM/Speed
99,999
16
2.0
6,500
4
0.01
RPM
Red line (rpm)
Pulses (4 stroke)
Over rev light duration
Telltale type
Setup
RPM
93
Red line
Sets the RPM value at which the red line (over rev) alarm light on the display triggers.
The four orange LED Gear change lights illuminate at intervals of 200 rpm below the
redline setting. e.g. If the Redline is set to 6500 rpm the first LED illuminates at 5700 rpm,
the second at 5900 rpm, the third at 6100 rpm, the fourth at 6300 and the RPM Redline
alarm LED illuminates at 6500 rpm. This is illustrated in the next table.
rpm
5700
5900
6100
6300
6500
94
C-dash User Guide
Orange LEDs
Redline red LED
Pulses
Setup
Sets the number of ignition pulses per TWO revolutions of the engine.
Overrev Light Duration
Sets how long the Red line (over rev) alarm light on the display stays on.
95
Telltale type
Sets whether the RPM maximum telltale value is latched on the maximum RPM or
maximum Speed.
96
C-dash User Guide
Wheelspeed
Use these options to set tyre diameter, number of wheelspeed triggers on a wheel and
the Out speed value.
Setup
Min.
Max.
Default
1
1
0,2,20,40,80,112
999
100
112
535
2
20
Tyre diameter (mm)
Triggers (per rev)
Outing start speed
Setup
Wheel speed
97
Tyre diameter
Sets the tyre diameter (in millimetres) on which the wheel speed trigger is mounted.
NOTE: Take special care in measuring the tyre diameter since this setting affects the
accuracy of all speed readings.
Triggers
Sets the number of speed triggers that are fitted on the wheel.
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C-dash User Guide
Out start speed
Setup
Sets the speed that must be exceeded before the C-dash switches to Race page and
recording of telltales starts. This will vary according to your vehicle, but should be greater
than the speed reached when you drive around the pits or garage areas.
99
Options
Sets display brightness minimum value, Latched or Realtime speed, C-dash type, Gear
number and RTD options.
Setup
Min.
Options
Default
10%
Latch max speed
SO/S1/S3/EO2/Mbe/Pectel
no
no/°C/°F
100%
Realtime
50%
Latch
SO
no
no
Options
Brightness
Speed
Type1
Gears
RTD option
2,3,4,5,6,7,8
1
SO is Standalone, S1 is System 1, S3 is System 3, EO is ECU Out option, Mbe is Mbe
ECU and Pectel is Pectel ECU.
2
The ECU Out option enables the C-dash to give an output data stream that can be
connected to a second C-dash (either directly or via a Telemetry radio). Both C-dashes
will then dispaly the same information.
100
C-dash User Guide
Brightness
Setup
Sets the minimum brightness of the all the LEDs and LED displays on the dash. Once set
in Setup, it can be controlled by a switch or a variable resistor. A switch can be used to
select either the set minimum or the maximum brightness. A variable resistor can be used
to vary the brightness between the set minimum and maximum brightness.
Speed
Sets the speed to be Latched or Realtime. Latched will display the maximum speed and
minimum speeds reached. Realtime will display maximum speed and Realtime speed on
the Race Page.
101
Type
Sets C-dash to function as a standalone dash or as a display for a Pi System or ECU data.
is Standalone,
ECU and
is System 1,
is Pectel ECU.
is System 3,
is ECU Out option,
is Mbe
Gear Number
Use this option to set up the number of gears you have, and the input values for each
gear.
102
C-dash User Guide
RTD option
Setup
Setting this option to °C or °F replaces the Oil Pressure channel with an RTD temperature
sensor channel.
103
Defaults
Resets ALL settable parameters to their default values.
Setup
Default
Defaults
Confirm
104
C-dash User Guide
Select to reset ALL parameters to their default settings
Select to confirm reset of all paramters to the default settings
Using C-dash
Using the
C-dash
Realtime mode
This section gives you step-by-step instructions on how to use the dash. It can be used
for reference once you have understood the concepts described in the sections Overview
and At the Track.
In Realtime mode the C-dash displays values from sensors, but data for Telltales is not
recorded. Once you exceed the Out speed and have a valid RPM, the C-dash
automatically switches to Race mode and begins recording Telltale data.
MODE/LAP button
■ Click the (MODE/LAP) button to switch between the two Realtime pages.
Using C-dash
The two Realtime Pages display data as shown in the next two figures.
107
Realtime Page A
Wheelspeed
Oil
Pressure
Coolant
Temperature
letter A
RPM
Realtime Page B
Wheelspeed
Fuel Pressure
(or Gear number
if set)
Oil
Temperature
letter b
Battery
volts
108
C-dash User Guide
Race mode
Race mode is similar to Realtime mode except that recording of telltales takes place
during Race mode (this is triggered by driving the vehicle above its Out speed).
lap number
Using C-dash
realtime speed
or
latched
maximum speed
latched
minimum
speed
letter r
lap time
The CHANNEL button
■ Click the (CHANNEL) button to cycle through the two Realtime pages and the
Race page.
Alarms
■ Click the (MODE/LAP) or (CHANNEL) buttons to clear an Alarm signal.
109
Alarms
The C-dash will trigger an alarm if thresholds for any of the following parameters are
exceeded:
■
■
■
■
■
Maximum Coolant temperature
Maximum Oil temperature
Minimum Oil or turbo pressure
Minimum Fuel or turbo pressure
Minimum Battery voltage
When an alarm is triggered, the respective alarm light is illuminated. An alarm message
and the value of the parameter causing the alarm are also displayed. The message is the
same as that displayed when setting the alarm thresholds in Setup mode.
After an Alarm has been generated, the thresholds are automatically adjusted after
30 seconds (until the dash has been reset), preventing alarms from re-triggering after a
spin:
■
■
■
Temperatures +5°C
Pressures –5psi
Battery Voltage –0.5V
Alarm prevention
To prevent alarms being set off unnecessarily, they are only triggered in Race Mode.
Note: If a wheelspeed sensor is not fitted, Alarms will not be triggered.
Setting Alarm thresholds
You can set the Alarm thresholds when the C-dash is in Setup mode; see the Setup
section.
110
C-dash User Guide
Telltale mode
The dash automatically enters Telltale mode after the vehicle has been driven and the
RPM and Speed are zero. Three pages of Telltale information are available. Telltales
Page C is the default page and is displayed when the C-dash enters Telltale mode.
Telltales Page C shows the minimum speed, maximum speed and lap time for the fastest
lap of the outing. You can scroll through all the laps on Telltales Page C or change to
another Telltales page and scroll through the displayed information for all the laps.
The MODE/LAP button
■ Click the (MODE/LAP) button to move to the next lap on a page.
NOTE: The first lap driven in an outing is always called the Out lap. The last lap driven
in an outing is always called the In lap.
Telltales pages
Telltales Page C
lap number
minimum
speed
maximum
speed
letter C
lap time
111
Using C-dash
The CHANNEL button
■ Click the (CHANNEL) button to cycle through the Telltales pages.
Telltales Page D
lap number
maximum
coolant
temperature
minimum
oil pressure
letter d
maximum
RPM
Telltales Page E
lap number
maximum
oil temperature
minimum
fuel pressure
letter E
minimum
battery volts
112
C-dash User Guide
At the Track
At the Track
Initial checks
This section takes you through a typical day of using a C-dash.
If you have not used a C-dash before, you may need to refer to the Setup and Using the
C-dash sections.
Kit list
For a typical day using C-dash:
Note: A master Beacon transmitter, set to channel 0, is installed at major tracks in the
UK. To use this transmitter you must set your beacon detector to channel 0. You do not
then need to use your own beacon transmitter.
In case of accident damage, we suggest you have:
■ a basic toolkit (including crimping tool)
■ a spare wheel speed sensor
■ a spare temperature sensor
■ a spare pressure sensor.
115
At the Track
If you have a Beacon kit, you will need:
■ the Beacon transmitter and power lead
■ a battery to run the Beacon transmitter (7.2V for a System 1 beacon or
12V if you are using System 2 beacon).
Checklists
Before each outing, check that:
■ the C-dash is powered up
■ the C-dash has been setup properly for the vehicle
■ the sensors are working properly (click the (MODE/LAP) button to switch
between Realtime Page A and Realtime Page B to check the sensor
values, e.g. car battery voltage, or RPM)
■ the wheel speed sensor is adjusted correctly (spin the wheel) and view
Realtime Page A—the decimal points in display field 2 are illuminated when
the sensor detects a trigger
■ the sensor wiring has not been damaged, if you’ve been working on the
vehicle.
If you have a Beacon kit, check that:
■ the Beacon transmitter is wired up and working (check the front light on the
transmitter)
■ the Beacon transmitter and detector are set to the same channel
■ the Beacon detector is working (wave the transmitter in front of it and check
that the decimal points in display field 5 are illuminated when a Beacon
transmitter signal is detected)
■ the beacon transmitter is placed on the pit wall at the same height as the
detector
■ the battery is fully charged
■ you remember to pick up your transmitter after the race!
NOTE: The lap times are stored in the C-dash, not in the Beacon transmitter. This
means that all the cars in your team can use the same Beacon channel with a single
transmitter.
Each time you visit a circuit, try to place the transmitter at exactly the same place on
the pit wall.
A master Beacon transmitter, set to channel 0, is installed at major tracks in the UK. To
use this transmitter you must set your beacon detector to channel 0. You do not then
need to use your own beacon transmitter.
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C-dash User guide
A typical day…
Once you have completed the check lists, you are now ready to go.
At the Track
The diagram below shows a typical day’s use of a C-dash. (The C-dash will normally have
been correctly installed and setup for your vehicle.)
117
Preparing for an outing
Powering up the C-dash
Turn on the master switch (and ignition switch, if necessary) to power up the C-dash. The
C-dash starts up in Power up mode and after a selftest lasting a few seconds, changes
to Realtime mode Page A.
Check the setup of the C-dash
The first time you use the C-dash, check that it is correctly setup (see the Setup section).
Warming up the car
1
Start the engine.
Use the C-dash to monitor temperatures and pressures whilst you warm the vehicle up
in the pits.
2
Click the (MODE/LAP) button to switch between Realtime Page A and Realtime
Page B.
Realtime Page A shows:
■
■
■
■
wheelspeed (2 digits only)
coolant temperature
oil pressure
RPM.
Realtime Page B shows:
■
■
■
■
118
C-dash User guide
wheelspeed (2 digits only)
oil temperature
fuel pressure
battery volts.
Driving the car
The car is now ready to drive.
As you leave the pits and pass the outing speed, the C-dash switches to the Race page
and starts recording data for the Telltale pages. The C-dash can record data for a
maximum of 45 laps.
Race page shows:
■
■
■
■
lap number
minimum latched speed
real time speed or latched maximum speed (depends on which option was
selected in Setup Mode)
lap time.
To return to Realtime Page A or Realtime Page B at any time:
1
Click the (CHANNEL) button until the page you want is displayed.
As you drive past the Beacon transmitter on the pit wall, the time for your last lap appears
on the Race page. Race page also shows a lap count.
Note: If a wheelspeed sensor is not fitted, Lap Times will not be displayed.
Spinning off
If you spin off and do not stall the engine, the C-dash remains in Race mode and
continues to record telltale data.
If you stall the engine and the car stops, the C-dash will switch to Telltale mode. If you then
restart the engine and start moving again, once the Out speed has been exceeded, the
C-dash automatically switches back to Race mode. ALL previous telltale data is lost and
the C-dash starts recording new telltale data as though it were on a new Outing.
119
At the Track
Lap Times
Alarms
An important feature of the C-dash is the ability to warn you if there is anything wrong with
the parameters it is monitoring (e.g. loss of oil pressure).
The thresholds at which the alarms go off are set in Setup mode.
If an alarm condition is detected, an Alarm light goes on and a message appears on the
display. If the alarm comes on, and stays on (e.g. there is an oil leak):
1
Click either (CHANNEL) or (MODE/LAP) button to reset the alarm.
If an alarm has been triggered, the threshold for that alarm is automatically adjusted for
the remainder of the outing, to prevent it from re-triggering immediately. The automatic
adjustment values are +5°C for temperature alarms, –5psi for pressure alarms and –0.5V
for the battery voltage alarm. If the reading is still significantly in error from the
automatically adjusted threshold, the alarm will continue to be generated and must be
reset each time until enough resets have been made to ensure that the reading no longer
exceeds the threshold setting.
If the problem (e.g. low fuel pressure) is temporary, the alarm will reset itself and the
threshold will not be adjusted.
NOTE: After a manual reset, alarm thresholds are reset to their original value only
when the C-dash is reset.
Battery alarm
C-dash requires a minimum battery voltage (7.0V) in order to operate. If the vehicle
battery delivers less than this, the Battery alarm will alert you when the battery is running
low. The threshold for the Battery alarm can be set in Setup mode.
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C-dash User guide
Returning to the pits
Inspecting telltales
When you stop and switch the engine off the C-dash automatically changes to Telltale
mode, and displays Telltale Page C. The data displayed on Telltale Page C is for the
fastest lap in the outing.
The highest maximum value and lowest minimum value for the parameters for an outing
on each telltale page are shown when the Lap number field displays tt.
Telltale Page C displays the following parameters for the fastest lap of the outing:
■
■
■
■
Lap number
Lap time
Minimum speed
Maximum speed.
You can then choose to scroll through the above parameters for all the laps in the outing,
or choose to view the remaining two Telltale Pages.
Click the (MODE/LAP) button to change the lap.
At the Track
1
or
2
Click the (CHANNEL) button to select Telltale Page D.
Telltale Page D displays:
■
■
■
■
3
or
4
Lap number
Maximum coolant temperature
Minimum oil pressure
Maximum RPM.
Click the (MODE/LAP) button to change the lap.
Click the (CHANNEL) button to select Telltale Page E.
Telltale Page E displays:
■
■
■
■
5
Lap number
Maximum oil temperature
Minimum fuel pressure
Minimum battery voltage.
Click the (MODE/LAP) button to change the lap.
121
Switching off the car
Once the car has come into the pits and you have checked the Telltale Pages, it is safe to
turn off the C-dash.
Note: Removing power from the C-dash will destroy the Telltale data recorded in the
C-dash.
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C-dash User guide
Troubleshooting
Troubleshooting
Troubleshooting
Until you are completely familiar with your C-dash, you may encounter difficulties.
This Section lists the most common sources of problems and how to correct them.
If the remedies suggested have no effect, please contact Pi Research.
WARNING: Do not attempt to repair Pi Research equipment yourself. The
Warranty will be invalidated if any parts of the system have been tampered
with.
C-dash
Cause
Action
No supply voltage
Check the car’s master switch and ignition switch.
Cause
Action
Flat battery
Make sure the car battery is charged up and connected.
Cause
Action
The connector on the dash is not secured.
Check the connectors in the back of the dash are properly located.
Cause
Action
Faulty wiring
Check that the supply voltage wiring is not damaged or has been shorted out.
(Refer to the Pin connection table in the ‘Installation Notes’ section.)
Troubleshooting
Problem The dash doesn’t start up
Problem The dash blanks out
Cause
Action
Supply voltage is dropping below 7 volts
Check the battery is well charged.
Problem The dash blanks out during use
Cause
Action
Excessive electrical noise
Check earthing of ignition or contact Pi Research
Cause
Action
Faulty wiring
Check that the supply voltage wiring is not damaged or has been shorted out.
(Refer to the Pin connection table in the ‘Installation Notes’ section.)
125
Remote push buttons
Problem One remote button doesn’t work
Cause
Action
Faulty wiring
Refer to the Installation Notes to check the wiring to the Switches.
Cause
Action
Faulty button switch
Try swapping the button switches to see if that cures the problem. If so, change the
faulty one.
Engine speed (RPM)
The C-dash
Problem The dash is reading half the correct RPM value
Cause
Action
The Pulse setting in the dash is wrong
Check and adjust the value in Setup mode.
Problem The Redline needs to be adjusted
Cause
Action
The Redline setting in the dash needs to be adjusted
Check and adjust the value in Setup mode.
Tacho signal
Problem Unstable or absent RPM reading
126
Cause
Action
The wiring is picking up noise from other sources on the car
Check whether the tachometer wiring runs close to other ignition circuits and reroute it if necessary.
Cause
Action
Wiring fault
Check that the tachometer signal from the ignition box (NOT the HT or LT ignition
signals) is connected to pin 2 of the 3-way RPM connector on the loom.
C-dash User Guide
RPM Box (HT or LT mode)
Problem The RPM readout is blank or intermittent
Cause
Action
The loom connection to the RPM Box may be faulty
Inspect the 3-way connector on the RPM Box or System loom and repair, if
necessary.
Problem The RPM reading is occasionally spiky
Cause
Action
The wiring is picking up noise from other sources on the car
Check whether the RPM wiring runs close to other ignition circuits and re-route it, if
necessary
RPM Box HT (High Tension) Connection
Problem The RPM reading cuts out or flashes at high RPM
Cause
Action
The RPM Box is not setup correctly
Check that the RPM Box is set for HT (positions 8 to F), and for the maximum
sparks per minute that can be emitted by the ignition system.
Problem The RPM readout is unstable
The HT connection on the RPM Box may be faulty
Inspect the wiring on the HT lead and repair, if necessary.
Problem The RPM reading is obviously too low
Cause
Action
The HT pickup has been wrapped around an HT lead to an individual cylinder
instead of the main HT lead and is not picking up the sparks for the other cylinders
Wire the HT pick-up around the main HT lead.
NOTE: Some engines now have multi-coil systems, where each cylinder has its own
coil. In these cases, you can use the HT lead from one coil if the PULSE value on
the dash is adjusted accordingly (see the ‘Installation Notes’ section); alternatively,
you could use the LT signal from the ignition box and drive the RPM Box in LT
mode.
127
Troubleshooting
Cause
Action
RPM Box LT (Low Tension) Connection
Problem The RPM readout cuts out or flashes at high RPM
Cause
Action
The RPM Box is not set up correctly
Check that the RPM Box is set for LT (positions 0 to 7), and for the maximum
sparks per minute that can be emitted by the ignition system.
Problem The RPM readout is unstable
Cause
Action
The LT connection on the RPM Box may be faulty
Inspect the wiring on the LT connections and repair, if necessary.
Problem The RPM readout is unstable
Cause
Action
The polarity of the LT connection may be wrong. There are normally three
connections on the coil: HT, supply and trigger. The trigger can either be switched to
ground or switched to +12V.
Connect the RPM Box in line with the other low tension side of the coil (e.g. supply
or trigger). This will reverse the polarity of the signal going through the box.
Speed
Problem The speed reading doesn’t work at all
Cause
Action
If it has never worked, the wheel speed sensor may need adjusting
The sensor must be set within 0.4 to 0.8 mm from the triggers on the wheel.
WARNING: DO NOT OVER-TIGHTEN THE WHEELSPEED SENSOR – it will
break. Nip the lock nuts up with a spanner. You are advised not to use a
socket set.
IMPORTANT: Although the wheelspeed sensor may appear to work at low
speeds, unless the sensor is set within 0.4 and 0.8 mm, the sensor may not
work at high speed.
128
C-dash User Guide
Problem The wheelspeed sensor has been adjusted but it won’t work
Cause
Action
Faulty sensor
Visually inspect the wheelspeed sensor for any damage to the head (too close to
trigger) or body (over-tightened). Replace if necessary.
Cause
Action
Faulty wiring
See the ‘Installation Notes’ section for details on how to check the wiring for
damage.
Problem The wheelspeed is wrong (e.g. by a factor of 2 or 4)
Cause
Action
The sensor is not picking up all the triggers on the wheel
Check that all the triggers are set within 0.4 and 0.8mm from the sensor.
NOTE: Because of the tolerance on the suspension of some saloon cars, it is very
hard to set up multiple targets within 0.5 mm. In this case, it is best to use a single
trigger.
Cause
Action
The wheelspeed Pulse setting is wrong
Check and adjust the value in Setup mode.
Cause
Action
The Tyre diameter setting is wrong
Check and adjust the value in Setup mode. This should be the actual rolling
diameter of the tyre when it is under load.
Using an ABS speed sensor…
Problem The wheelspeed appears incorrect when using an ABS sensor interface box
Cause
Action
The number of triggers and/or the tyre diameter set in the dash may be wrong
Check the number of triggers on the ABS sensor wheel and set up the dash
Cause
Action
The ABS interface box is earthing to the chassis
Do not connect any of the wires from the interface box directly to the chassis
Cause
Action
The ABS sensor is also trying to drive the car’s ABS system
Isolate the interface box wiring from the ABS system with 100µF capacitors as
described in the ‘Installation Notes’ section.
129
Troubleshooting
Problem The wheelspeed reading seems inaccurate (e.g. by 5 percent)
Using the waterspeed sensor…
Problem The water speed appears incorrect
Cause
Action
The number of triggers and/or the tyre diameter settings in the dash may not be
providing a correct calibration with the boat speed
Adjust the value used for tyre size to change the speed displayed by the dash (try
650mm and 20 pulses per rev). The speed can be calibrated against a hand-held
GPS unit.
Problem The waterspeed trace is very ‘noisy’ even when the boat is in smooth water
Cause
Action
Cause
Action
The sensor may have been mounted on the hull in such a way that it picks up
turbulence from the prop or fins on the hull
Try mounting the sensor in a different position on the hull as indicated in the
installation section
The sensor may be mounted too high on the hull and is being driven by the air flow
under the hull
Move the sensor lower on the hull.
Using the wheelspeed selector box…
Problem The speed information is corrupted
130
Cause
Action
The wheelspeed selector box is picking up noise from the chassis
Do not connect the supply 0V (Pin G on the selector box) if the ABS sensors are
earthed to the chassis
Cause
Action
The power supply is being taken directly from the battery
The 12V supply (Pin J on the selector box) should come from the C-dash and not
directly from the vehicle battery
C-dash User Guide
Lap times (Beacon)
If you have not purchased a Beacon kit for your C-dash, the dash cannot show lap
times.
To test the Beacon system, turn on the C-dash and beacon transmitter and wave
the beacon transmitter in front of the detector on the car. The lap times on the
C-dash should change.
Problem Lap times don’t appear on the dash
Cause
Action
The C-dash must be configured to use a Beacon
Check and adjust the setting in Setup mode.
Problem Lap times aren’t working (dash shows 0.00)
Cause
Action
The Beacon transmitter isn’t being powered; the LED on the Beacon transmitter
isn’t on
Make sure the battery wiring is secure, and that the battery is fully charged (12V).
Cause
Action
The channels are not correctly set
Make sure that the Beacon transmitter (on the pit wall) and detector (on the car) are
set to the same channel. They both have a switch with positions 0 to 9
Cause
Action
The transmitter and detector are not lined up correctly
As the car passes the transmitter, make sure that there is a clear line-of-sight
between the two.
Cause
Action
Sunlight is dazzling the detector
The sun – a large infrared Beacon transmitter! – should not shine into the detector
as it passes the pits. Place the detector on the other side of the car and move the
transmitter to the other side of the track.
131
Troubleshooting
NOTE: Although a lit LED on the transmitter indicates a good connection to the
battery, only a fully recharged battery will supply a strong signal to the car. Make
sure you recharge the battery before a day at the track.
Problem Lap times are being corrupted
Cause
Action
If the wheelspeed sensor is not set up properly, the dash will occasionally read zero
road speed and insert pit stops in its data. This shows up with very short lap times
(e.g. 2 seconds).
Check and adjust the wheelspeed sensor (see section on wheel speed
troubleshooting).
Problem The lap times seem wrong
Cause
Action
132
C-dash User Guide
The car may be picking up someone else’s Beacon signal.
Check if any other teams are running with the same type of Beacon transmitter on
the same channel and agree to use different channels.
Temperatures
When measuring temperatures with a thermocouple ...
Problem The thermocouple readings are noisy
Cause
Action
The thermocouple amplifier box is picking up electrical noise from the chassis
Make sure the thermocouple amplifier box is not electrically connected to the
chassis.
Cause
Action
The amplifier is picking up electrical noise from the chassis
Make sure the leads for the thermocouple probe and amplifier do not pass close to
high voltage sources such as the ignition coil or magneto.
Pressures
Cause
Action
The pressure sensor is faulty
Check that the connectors on the pressure sensors are correctly fitted, and going to
the right sensor. If necessary, change the pressure sensor.
Cause
Action
The pressure sensor wiring is damaged
Check the wiring on the car for visible damage and repair where necessary.
NOTE: If one pressure sensor seems wrong, try putting its connector onto the other
sensor. If the fault moves with the connector, then the wiring or dash is faulty. If the
fault does not move with the connector, the pressure sensor needs replacing.
When using the turbo/carburettor pressure sensor…
Problem The C-dash appears to display the wrong turbo or carburettor pressure
Cause
Action
The C-dash and pressure sensor may be incompatible
If you are using the low range pressure sensor (0 to 2.5 bar) the pressure channel
units must be configured as tbar under the UNITS menu in setup mode.
133
Troubleshooting
Problem The pressure readings are wrong
Telltales
Problem The dash won’t go into Telltale mode
Cause
Action
134
C-dash User Guide
The dash cannot go into Telltale mode until the car has been driven and then
stopped.
Drive the car.
Appendices
Appendices
Appendix A - C-dash and System 1
Introduction
A C-dash can be used with a Pi System 1 data logger. Sensors can be connected to both
the System 1 data logger and to the C-dash. Data from sensors that are connected directly
to the C-dash is viewed on the C-dash and can be also be logged in the System 1.
Sensors which are connected directly to the System 1 can be logged but not viewed on
the C-dash.
Appendices
Pi Club Expert Windows PC software is used to select which channels to log on the
System 1.
137
Installation of C-dash
with System 1
The figure below shows the connections for the C-dash, the System 1 and sensors.
C-dash
Options Type
set to S1
Red + Black for
right switch
(Red button)
C-dash
switches
Green + Black
for left switch
(Green button)
Yellow
collar
Yellow + Black
for dimmer
input
Wheelspeed input
blue collar
red collar
Display loom
02C-00075
Sensor loom
02C-00080-4
2 pressure
sensors 2 temperature
sensors
12V supply
Over rev light
RPM
Beacon
Adaptor loom
60K-162155
COMPUTER
EXPANSION
CH1 PWR
CH1 SIG
CH1 GND
CH2 PWR
CH2 SIG
CH2 GND
CH3 PWR
CH3 SIG
CH3 GND
CH4 PWR
CH4 SIG
CH4 GND
CH5 PWR
CH5 SIG
CH5 GND
CH6 PWR
CH6 SIG
CH6 GND
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BATTERY (-)
BATTERY (+)
CHASSIS
DIGITAL I/P
DIGITAL O/P
OVER REV (-)
OVER REV (+)
T/C (- BLUE)
T/C (+ WHITE)
BEACON GND
BEACON SIG
BEACON PWR
SPEED GND
SPEED SIG
SPEED PWR
RPM GND
RPM SIG
RPM PWR
System 1
TOP
Signals into System 1:
Wheelspeed input (pin 5)
Beacon input (pin 8)
C-dash to System 1 connections
138
C-dash User Guide
Installation information
The lists below give installation information.
Display loom connections:
■ Connect a 12V supply to the flying lead labelled Power. Connect the red
wire to battery +ve and the black wire to battery –ve. This only supplies
power to the C-dash.
■ Connect the wheelspeed sensor to the flying lead labelled WSP FL.
■ If you have a remote Over Rev alarm light, connect it to the flying lead
labelled Over Rev.
Sensor loom connections:
■ Connect the sensors that you want to display on the C-dash (and the option
to be logged in System 1) to the Sensor loom flying leads. The flying leads
are labelled showing the type of sensor to be connected.
Adapter loom connections:
■ Connect the flying lead labelled Beacon to the Beacon input pins on the
System 1 orange connector. Refer to the System 1 User Guide.
■ Connect the flying lead labelled WSP to the wheelspeed input pins on the
System 1 orange connector. Refer to the System 1 User Guide.
System 1 connections:
■ Connect a 12V supply to the relevant pins on the System 1 connector.
Refer to the System 1 User Guide.
■ Connect the sensors that you want to log BUT not display on the C-dash, to
the relevant pins on the System 1 connector.
The C-dash is controlled by two remote switches. Refer to the C-dash User Guide on how
to connect the C-dash switches.
The C-dash can be set so that the display can be dimmed. The setting determines what
type of input is required on the yellow and black wires. Refer to the C-dash User Guide.
139
Appendices
C-dash loom with yellow collar:
C-dash setup for use
with System 1
To work with System 1 the C-dash Setup Options Type must be set to S1. The C-dash
must also be set up for the channels you want to display. Refer to Setup section.
Pi Club Expert Windows
Use Pi Club Expert Windows to setup and select the channels to be logged, and to select
the C-dash as the System 1 dash. Refer to the Pi Club Expert Windows User Guide.
System 1 must know if channels 1 to 4 are connected to the C-dash or directly to
System 1. This is done by selecting the Dash options in the Logging Setup.
To select the dash options in the logging set up:
1
Choose Set up • Set up Logger. Select a logger from the list in the Select
Logger dialog box.
2
Click the Dash tab on the Logging set up dialog box and select the C Dash
option.
3
Select the C-dash or System 1 options for Channels 1 to 4.
Channels 1 to 4 refer to Input 1 to Input 4 on the Analogue Channel tab on the Logging
set up dialog box. These inputs have default settings which can be re-configured. The
Inputs are listed in the table below.
Analogue Channels Input 1 to Input 4
140
Input no. Default use
Alternate use
Channel number
1
2
3
4
RTD input
Gear number
Channel 1
Channel 2
Channel 3
Channel 4
C-dash User Guide
Oil pressure
Fuel pressure
Water temperature
Oil temperature
Connector information
Display loom
The Display loom has two fixed connectors and three flying leads.
Connector types
Loom connector
Mating connector
Comment
09G-0297
09G-0297
09G-0298
09G-0298
Labelled Display. Blue collar.
Labelled Logger.
Connector labelled Display – pin information
Pin Colour Function
Pin Colour Function
1
2
3
4
5
6
7
8
9
10
11
12
white
blue
red
red
blue
white
System 1 to C-dash
C-dash to System 1
Data to PC
Data from PC
Wheelspeed signal
Beacon from C-dash
red
red
white
black
black
black
Battery +ve (C-dash power)
+12V for wheelspeed
Over rev light signal
Battery –ve (C-dash power)
Ground 3
Ground 3
Pin Colour Function
Pin Colour Function
1
2
3
4
5
red
6
blue
7
white
8–12
white
blue
red
black
System 1 to C-dash
C-dash to System 1
Data to PC
Data ground
Appendices
Connector labelled Logger – pin information
Data from PC
Wheelspeed signal
Beacon from C-dash
No connection
141
Sensor loom
The Sensor loom has one 12-pin connector and 6 flying leads for connecting sensors.
Each flying lead is labelled for the type of sensor to be connected.
Connector type
Loom connector
Mating connector
Comment
09G-0298
09G-0297
Labelled Sensors
Connector labelled Sensor – pin information
Pin Colour Function
Pin Colour Function
1
2
3
4
5
6
7
8
9
10
11
12
blue
blue
blue
blue
–
blue
Oil pressure
Fuel pressure
Water temperature
Oil temperature
No connection
RPM signal
red
red
red
black
black
white
+12V for RPM box and Oil temp
+12V for Beacon and Water temp
+5V for Fuel and Oil pressure
Ground for Beacon
Ground for RPM box
Beacon signal
Adaptor loom
The Adaptor loom has a 12-pin connector at one end and a 5-pin DIN plug at the other.
The 5-pin DIN plug has two flying leads. The flying leads are labelled WSP and Beacon.
Connector types
142
Loom connector
Mating connector
Comment
09G-0298
5-pin DIN plug
09G-0297
5-pin DIN socket
Labelled Logger
Labelled Expansion
C-dash User Guide
Connector labelled Logger – pin information
Pin Colour Function
Pin Colour Function
1–2
3 red
4 black
5
6 blue
7 white
8–12
No connection
C-dash to System 1 data
Data Ground
No connection
Wheelspeed to System 1
Beacon from C-dash to System 1
No connection
Connector labelled Expansion – pin information
Pin Colour Function
Pin Colour Function
1
2
3
4
5
red
Wheelspeed to System 1
No connection
C-dash to System 1 data
white
black
Beacon from C-dash to System 1
Data Ground
Appendices
blue
143
Appendix B - C-dash and System 3 Club
Introduction
The Pi C-dash can be used with Pi System 3 Club to display channel data. The channels
for display on the C-dash are selected using Pi Version 6 Lite Setup software. Two remote,
centre position, toggle switches are used to control the C-dash.
144
C-dash User Guide
Installation with
System 3 Club
The C-dash loom with the Blue collar is connected to the Display connector on the
System 3 Club loom.
C-dash
Options Type
set to S3
Green = Switch 1
Blue = Switch 2
Black = Ground
for right switch
C-dash
switches
Red = Switch 3
White = Switch 4
Black = Ground
for left switch
Yellow
collar
Yellow + Black
for dimmer
input
Blue collar
Display connector
Red collar
not connected
Appendices
System 3 Club
LCU
Connecting a C-dash to Pi System 3 Club
145
System 3 Club LCU DIP
switch settings
The large DIP switches on the System 3 Club LCU must be set up to use the C-dash. The
left and right large switches must be set to ON (up position). Refer to the System 3 Club
User Guide for the settings for the single DIP switches.
single switches large switches
1 2 3 4 5 6 7 8
1
1
1
OFF
left
right
centre
LCU DIP switch settings
Using the C-dash with
System 3 Club
Display pages
Displayed information is organised in pages. There are three pages of information; race,
start and practice. Channel values on these pages are grouped together, giving suitable
channels for starting the engine, a minimal race setting, and a practice session. The
C-dash has a default set of channels for each page, but you can change the channels that
are displayed by using Pi Version 6 Lite Setup software.
You can use the C-dash to display alarms which you set up using Pi Version 6 Lite Setup
software.
146
C-dash User Guide
C-dash switches
When used with System 3 Club the C-dash has two remote, centre position, toggle
switches which replace the normal red (CHANNEL) and green (MODE/LAP) push button
switches used with the C-dash. You use the remote switches to change page,
acknowledge alarms and activate other functions of the C-dash. The switches are either
used individually, or together, increasing the number of functions they perform.
The left-hand switch is normally the Page switch and is used to change between display
pages. The right-hand switch is normally the Driver’s switch and is used to acknowledge
alarms.
Clicking and holding a switch
The switches are spring loaded and biased to the centre position. Each switch can be
either ‘clicked’ or ‘held’.
To click a switch:
1
Push the switch away from its central position (either up or down), for not
more than one second, and release it. The switch will return to the centre
position.
Hold
Click
Hold
Click
Appendices
To hold a switch:
1
Push the switch away from its central position (either up or down) and wait
until the display changes (between one and three seconds). Release the
switch and it will return to the centre position.
Clicking and Holding switches
147
Changing pages
Display pages are organised in the order:
■
■
■
Race page
Start page
Practice page
Assuming that you are looking at the Race page (the default page), to change to the Start
page:
1
2
3
Click the page switch once, upwards. As you click the page switch, the C-dash
display clears and Status page is shown momentarily on the display. The
Status page shows the selected page and the code version that your System
is programmed with.
To change from the start page to the practice page, click the page switch once
upwards.
To move through the pages in the opposite direction, click the page switch
once downwards for each page.
Note: The pages of the display do not scroll around.
Race
Page
switch
click up
click down
Start
click up
click down
Practice
Changing pages using the Page switch
148
C-dash User Guide
C-dash setup for use
with System 3 Club
To work with System 3 Club the C-dash must be set to be Type S3 in the Setup Options.
To set the Options Type to S3:
1
Hold both remote switches in the ON (up) position and apply power to the
C-dash. This forces the C-dash into Setup mode.
2
Click the Drivers switch to cycle through the Setup Groups. Stop at Options.
3
Hold the Drivers switch in the ON (up) position. Click the Page switch to cycle
through the options. Stop at type.
4
Click the Drivers switch to cycle through the types. Stop at S3.
5
Hold both remote switches in the ON (up) position for two seconds. The Cdash setup is saved.
Pi Version 6 Lite Setup
software
You use Pi Version 6 Lite Setup software to configure the C-dash.
Appendices
To configure the C-dash:
1
From the Pi Version 6 Lite Setup software Hardware menu choose Display
Items or click the Display Items button on the toolbar. The Display Setup
dialog box appears.
2
Select a car from the Car list.
3
In the G Threshold for Corner Exit Speed box enter a threshold value.
4
In the RPM Red Line box enter a value for the RPM Red Line.
5
Select a page from the Page list.
6
Click each display field button in turn and select a channel from the list.
7
Click the Gear Display button and configure the Gear Display Setup dialog
box as required.
8
Click the Gear Channel button and select a channel from the list.
Note: The gear change lights and redline alarm light will not work if you don’t select a
channel for the Gear Channel.
149
9
10
11
12
13
14
150
C-dash User Guide
Select a Gear from the list and set the RPM values for the gear change lights
(LEDs 1 to 4) and RPM redline alarm (LED 5) on the C-dash.
If you are using satellite displays click on the relevant button in the Numeric
Displays panel and select a channel to display from the list.
Repeat steps 5 to 10 for the other two Pages.
Click Time Format and select from the options in the Time Format dialog box.
Click Alarms and complete the Alarm Setup dialog box as required.
Click OK.
Appendix C - C-dash and MBE ECU
Introduction
The C-dash can display the following channels from an MBE ECU:
■
■
■
■
■
Oil pressure
Fuel pressure
RPM
Water temperature
Oil temperature
External sensors
required
The data stream from the ECU does not include Speed information. To enable speed to
be displayed a wheelspeed input is required. To provide lap times a Beacon input is
required.
The Units setup for oil and water temperatures are fixed at °C. The Units setup for fuel
and oil pressure are fixed at PSI.
Set up Alarms, Beacon, RPM, Wheelspeed and Options as required. The Options Type must be set to MBE.
151
Appendices
C-dash setup for use
with MBE ECU
Using a MBE ECU and
C-dash with Pi System 1
The C-dash can be connected to a Pi System 1 which will then allow the MBE ECU
channels to be logged. Refer to Appendix A - C-dash and System 1 for details on how to
use a C-dash with System 1.
C-dash connections : MBE ECU and System 1
The MBE ECU data stream is connected pin 4 on the C-dash loom Blue connector
labelled Display.
Pi System 1 is connected to pin 3 on the C-dash loom Blue connector labelled Display.
152
C-dash User Guide
Appendix D - C-dash and Pectel ECU
Introduction
The C-dash can display the following channels from a Pectel ECU:
■
■
■
■
■
■
■
Speed
Oil pressure
Fuel pressure
RPM
Gear number
Water temperature
Oil temperature
External sensors
required
A Beacon input is required to provide lap times.
Set up Alarms, Beacon, RPM, Wheelspeed and Options as required. The Options Type must be set to Pectel.
153
Appendices
C-dash setup for use
with Pectel ECU
Using a Pectel ECU and
C-dash with Pi System 1
The C-dash can be connected to a Pi System 1 which will then allow the Pectel ECU
channels to be logged. Refer to Appendix A - C-dash and System 1 for details on how to
use a C-dash with Pi System 1.
C-dash software version requirements
To use a Pectel ECU with the C-dash and Pi System 1 the C-dash must be programmed
with software version 1.41 or later. The software version is displayed during the selftest
sequence when the C-dash is powered up.
C-dash connections : Pectel ECU and System 1
The Pectel ECU data stream is connected to pin 4 on the C-dash loom Blue connector
labelled Display.
Pi System 1 is connected to pin 2 on the C-dash loom Blue connector labelled Display.
154
C-dash User Guide
Index
Index
C
3-pin Sure-Seal
C-dash and
4mm ring tags
71, 75
8mm ring tags
76
MBE ECU
151
Pectel ECU
System 1
Symbols
0 - 200 psi pressure sensors
4mm ring tags
Deutsch connector details
153
Adaptor loom
71
and MBE ECU
51
52
C-dash setup
connections
Connector types
51
51
mounting
Alarms
51
51
installation
alarm light
110
Race Mode
110
Maximum Oil temperature
Minimum Battery voltage
110
Minimum Oil or turbo pressure
Setting Alarm thresholds
110
110
Pressures –5psi
110
System 3 Club
110
C-dash setup
Temperatures +5°C
110
Thrsholds
anti-vibration mounts
30
110
Beacon detector
Beacon kit
72, 116
13, 28
MBE ECU
149
17
16
151
Pectel ECU
153
C-dash wiring Information
145
146
148
4mm ring tags
75
8mm ring tags
76
Display loom
149
146
Sensors loom
147
Sure-Seal connectors
to hold a switch
147
Switches loom
149
76
75
CHANNEL button 60, 72, 81
Checklists
116
Connect the loom to the C-dash
C-dash connections
2-pin Sure-Seal
146
75
75
to click a switch
to set the Options Type
74
74
Female blade connectors
148
using the C-dash
74
Deutsch connector details
148
System 3 Club User Guide
28
Software version
C-dash Set up
148
Setup Options Type S3
Start page
B
Setup mode 16
Telltale mode
LCU DIP switch settings
Race page
146
147
146
Practice page
Battery Voltage –0.5V
16
Realtime mode 16
Configure the C-dash
Installation
16
16
17
Race mode
149
Changing pages
alarm thresholds
selftest
139
139
C-dash remote switches
110
152
Power up mode
144
Display pages
110
139
142
and Pi Version 6 Lite software
110
Minimum Fuel or turbo pressure
battery
Blue connector
System 1 connections
Maximum Coolant temperature
29
152
C-dash modes
140
Sensor loom connections
110
67
75
69
C-dash loom
139
138
Sensor loom
70
67, 76
C-dash dimensions
remote Over Rev alarm light
110
alarm prevention
thresholds
tors
141
141
Pi Club Expert Windows
alarm message
Sure-Seal
154
75
Waterproofing Sure-Seal connec-
display loom connections
110
152
Switches loom (yellow collar)
138
Display loom
maximum input frequency
139
140
connections
75
MBE ECU and System 1
spade connectors
154
C-dash connections 52
Female blade connectors
Sensors loom (red collar)
C-dash loom with yellow collar
ABS speed sensors (passive type)
74
Pectel ECU and System 1
140
152
and Pectel ECU
ABS sensor interface box
connector
139
142
Analogue channels 1 to 4
A
74
Display loom (blue collar)
137
Adapter loom connections
71
67
Crimping a contact
65
68
157
D
K
Dash viewing angles
31
filter on the C-dash screen
Deutsch connector details
DIP switch settings
display fields
74
146
Tacho pulse input
31
Lap timing
12
gear number
12
12
12
oil pressure
12
12
Realtime Page A
14
Realtime Page B
14
Pectel ECU
mounting
46
Pi Club Expert Windows
Dash options
48
User Guide
48
connector
48
mounting
48
ware
49
Master switch
Maximum Coolant temperature
Telltales Page D
14
Maximum Oil temperature
14
MBE ECU
E
59
110
110
minimum battery voltage
120
Minimum Oil or turbo pressure
G
MODE/LAP button
Alarms
Race page
110
81
O
I
Race mode
115
Installation kit
27
separate 12 volt battery
158
7
ABS sensor interface box
ABS wheelspeed
Boat speed
Intallation
29
C-dash User Guide
119
Realtime Page A
118
Realtime Page B
118
119
Warming up the car
7
Optional sensors and interface boxes
111
120
119
Powering up the C-dash
Spinning off
Operating mode
50
50
Pressure sensor (low)
50
50
118
120
Lap Times
110
50
150
150
Battery alarm
Gear numbers
60
149
Preparing for an outing
152
Minimum battery voltage
150
149
149
Time Format
110
Minimum Fuel or turbo pressure
Initial checks
149
satellite display modules
151
data stream connection
In lap
150
G Threshold
RPM Red Line
28
14
to set up
144, 146, 149
Alarm Setup
Gear Display
116
Telltales Page C
EGT
140
Gear Channel
Master Beacon transmitter
13
137, 140
140
Pi Version 6 Lite Setup soft-
48
M
12
Telltales Page E
153
gear change lights
RPM redline 12
telltales
P
46
46
siting a beacon transmitter
12
Speed
99
connector
connections
14
Out start speed
46
50
111
46
channels
12
page identification letter
RPM
46
beacon transmitter
oil temperature
Race Page
Out lap
connections
gear-change lights
lap times
13
channels
fuel pressure 12
50
Wheelspeed selector box
beacon detector
coolant temperature
50
Waterspeed sensor
L
12
50
System 2 thermocouple + amp
115
Lap time
12
alarm lights
Sequential gear position
Kit list
118
118
50
R
Telltale Page D
Race mode
109
Lap number
Race Page
14, 20
Maximum coolant temperature
Lap number
Lap time
Maximum RPM
14
Latched maximum speed
14
Telltale Page E
Latched minimum speed
14
Lap number
Page ident letter r
Realtime speed
MODE/LAP button
Realtime Page A
108
Telltale data
Realtime Page B
108
RPM Box HT connection
Realtime Page A
14, 18, 72
Coolant temperature
Oil pressure
14
122
38
Type
35
Tachometer connections
Tachometer Signals
14
Wheelspeed
the RPM Box
14, 19
Connector
14
Mounting
14
35
81
Parameter values
RPM setup
35
36
94
Setup Group
Units
81
Setup Page
15
Set up the C-dash
Remote push buttons
61
CHANNEL button
61
fitting the buttons to a steering
63
Setting up the RPM Box
Setup mode
to fit the remote push buttons 61
Returning to the pits
121
Inspecting telltales
121
121
Telltale Page C
121
Lap number
121
Alarms
39
Oil Pressure
79
Speed
88
90
Fuel pressure alarm setup
Maximum speed
121
Minimum speed
121
97
Out start speed
99
90
98
88
spiralwrap
98
24
spade connectors
89
Oil temperature alarm setup
Setup page
85
86
85
Tyre diameter
89
Oil pressure alarm setup
86
Wheelspeed setup
Triggers
Coolant temperature alarm
121
83
84
Oil and water temperature
Battery voltage alarm setup
setup
Units Group
Fuel Pressure
60
87
Alarms setup page
79
81
to leave Setup mode
73
Setting up the gear number option 60
Realtime Page A mode
96
81
Setup Groups
Remote button functions
95
95
RPM telltale type
36
79
93
Pulses
36
S
79
Overrev Light Duration
14
Telltale mode
101
Red line
Connections
14
102
103
remote button operations
the RPM box
14
72
Lap time
35
36
Realtime pages A and B
wheel
35
81
102
Parameter
RPM box with High Tension (HT)
14
Page ident letter B
101
Speed
digital ‘tacho’ signals
Oil temperature
Brightness
RPM measurement
14
Fuel pressure
100
RTD option
RPM
Battery volts
Options setup
Gear Number
RPM box with Low Tension
Wheelspeed
104
entering Setup mode
121
Realtime mode 18
Realtime Page B
121
91
92
Defaults
RPM Box LT connection 37
14
Page ident letter A
91
92
Type
121
Telltale Pages
107
82
Step mode 82
Beacon fitted
121
Minimum fuel pressure
107
82
Auto-adjust mode
Mode
Minimum battery voltage
14
Altering a parameter
Beacon setup
121
Maximum oil temperature
14
121
121
Minimum oil pressure
14
Realtime mode
121
70
28, 71
159
Standard Pressure sensor
Connections
Connector
Mounting
42
42
42
42
Mounting the pressure sensors
Telltales Page D
112
Telltales Page E
112
oil temperature
Oil temperature
accuracy
67
67
67
Beacon
wrong
44
45
67
145, 149
System checks and Power-up
72
Tachometer Signals
Telltale mode
35
44
cuts out at high RPM
127
44
is occasionally spiky
127
is too low
44
current pulses 36
flashes at high RPM
Example Setups
is blank or intermittent
40
1-cylinder 2-stroke
41
is unstable
4-cylinder 4-stroke
40
Speed information
lap number
lap time
14
minimum speed
lap number
Connector
14, 111
Page ident letter C
Telltales Page D
Connections
14, 111
Mounting
14
maximum coolant temperature
maximum RPM
Page ident letter D
lap number
minimum fuel pressure
Page ident letter E
160
14
111
111
C-dash User Guide
14
14
14
129
seems inaccurate
errors
Connections
125
Connector
131
132
126
Mounting
57
57
57
Operating Range
C-dash won’t go
corrupted
129
Turbo/carburettor pressure sensor
133
half the correct RPM value
into Telltale mode
129
Wheelspeed sensor
125
C-dash is reading
Lap times
130
Wheelspeed
is wrong
73
C-dash doesn’t start up
14
130
Wheelspeed reading
98
wrong turbo pressure
14, 23
minimum battery Volts
cycle through
is very noisy
C-dash display
14
126
Water speed
Waterspeed trace
59
C-dash blanks out
14
maximum oil temperature
Telltales pages
14
Triggers
59
appears incorrect
59
133
Unstable or absent RPM reading
59
59
Troubleshooting
14
minimum oil pressure
Telltales Page E
readings are noisy
58
Operating range 59
14
128
Thermocouple
Thermpcouple probe and amplifier
14, 22
130
doesn’t work at all
36
Thermocouple probe and amplifier
maximum speed
127
127, 128
is corrupted
66
Ehaust Gas Temperature (EGT)
14
128
Speed reading
41
Thermocouple sensor
111
127
RPM readout
The wiring loom
14, 21, 111
fastest lap time
126
RPM reading
mounting
voltage pulses
Telltales Page C
126
connector
coils
111
needs to be adjusted
don’t work
44
44
4-cylinder 4-stroke with double
T
133
Remote buttons
The RPM box
Wheelspeed
132
Redline
44
operating range
67
67
System 3 Club
wrong
131
131
Pressure readings
44
temperature sensor
67
RPM
not working
mounting the temperature sensors
42
Coolant temperature
3-pin
don’t appear
111
coolant temperature
Sure-Seal connector
2-pin
111
Telltales Page C
Temperature measurement
43
Indirect fitting 43
Operating Range
move to next lap
134
Tyre diameter
98
57
57
W
waterproofed
69
Waterspeed sensor
connections
53
53
connector
53
mounting
53
positioning the Sensor on the hull
sensing type
wheel speed sensor
116
adjusted correctly
Wheelspeed
54
53
116
97
Wheelspeed selector box
Connections
Connector
55
Fastest signal (H)
Mounting
55
55
55
55
Slowest signal (K) 55
Supply current
55
Supply voltage 55
Wheelspeed sensor
bracket
32
34
clearance distance
Connector
gap
32
32
34
mounting
32
sensing distance
32
sensor connections
trigger types
wheelspeed trigger
wires in the loom
colour coded
32
34
33
28
28
161
Contact information
For more information about Pi products and details of worldwide authorised agents,
please contact:
Pi Research
Brookfield Motorsports Centre
Twentypence Road
Cottenham
CAMBRIDGE
UK
Customer Support Tel +44 (0) 1954 253600
CB4 8PS
Fax +44 (0) 1954 253601
Pi Research, Inc.
8250 Haverstick
Suite #275
Indianapolis
IN 46240
USA
www.piresearch.com
162
C-dash User Guide
Tel
Fax
+1 (317) 259-8900
+1 (317) 259-0137